EBK FUNDAMENTALS OF BIOSTATISTICS
8th Edition
ISBN: 9780101123402
Author: Rosner
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 7, Problem 103P
To determine
Identify the procedure to establish equivalence. Check whether the equivalence is same as accepting null hypothesis.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Patients immobilized for a substantial amount of time can develop deep vein thrombosis (DVT), a blood clot in a leg or pelvis vein. DVT can have serious adverse health effects and can be difficult to diagnose. On its website, drug manufacturer Pfizer reports the outcome of a study looking at the effectiveness of the drug Fragmin (dalteparin) in preventing DVT in immobilized patients. Of the 1518 randomly chosen immobilized patients given Fragmin, 42 experienced a complication from DVT. Of the 1473 randomly chosen immobilized patients given a placebo, 73 experienced a complication from DVT.
Compute the proportion (risk) of patients experiencing DVT complications for immobilized patients treated with Fragmin. (Enter the proportion with 4 decimal places. DO NOT enter the percent.)
Suppose we want to study the effect of smoking on lung capacity in women. Match the study to experimental or observational.
Find 100 women age 20 who do not currently smoke. Randomly assign 50 of the 100 women to the smoking treatment and the other 50 to the no smoking treatment. Those in the smoking group smoke a pack a day for 10 years while those in the control group remain smoke free for 10 years. Measure lung capacity for each of the 100 women.
Find 100 women age 30 of which 50 have been smoking a pack a day for 10 years while the other 50 have been smoke free for 10 years. Measure lung capacity for each of the 100 women. Analyze, interpret, and draw conclusions from data.
A mutation in Gene A is thought to be associated with a disease. The mutation in Gene A is found in 5% of the population. 2% of the whole population is diagnosed with disease B at some point in their life time. 1% of the population both has the mutation and also gets diagnosed with the disease in their life time.
Is the provided data adequate to test the independency of mutation in Gene A and occurrence of Disease B? If it is not, what other information or data is needed to test the independency?
What is the probability of Disease B, among the individuals with the mutation in Gene A?
What is the probability of having the mutation in Gene A among the individuals with Disease B?
If an individual has the mutated Gene A, what is their Relative Risk of developing the disease?
Chapter 7 Solutions
EBK FUNDAMENTALS OF BIOSTATISTICS
Ch. 7.3 - What is the difference between a type I and type...Ch. 7.3 - What is the difference between the critical-value...Ch. 7.3 - Several studies have shown that women with many...Ch. 7.7 - In the BMD study referred to in Case Study 2 (p....Ch. 7.7 - Prob. B.2RECh. 7.7 - Prob. B.3RECh. 7.9 - Prob. C.1RECh. 7.9 - Prob. C.2RECh. 7.9 - How much power did the test in Review Question...Ch. 7 - The mean serum-creatinine level measured in 12...
Ch. 7 - The mean serum-creatinine level measured in 12...Ch. 7 - The mean serum-creatinine level measured in 12...Ch. 7 - The mean serum-creatinine level measured in 1 2...Ch. 7 - The mean serum-creatinine level measured in 12...Ch. 7 - The mean serum-creatinine level measured in 12...Ch. 7 - The mean serumcreatinine level measured in 12...Ch. 7 - The mean serumcreatinine level measured in 12...Ch. 7 - Plasma-glucose levels are used to determine the...Ch. 7 - Plasma-glucose levels are used to determine the...Ch. 7 - Plasma-glucose levels are used to determine the...Ch. 7 - Suppose the incidence rate of myocardial...Ch. 7 - Suppose the incidence rate of myocardial...Ch. 7 - Suppose the incidence rate of myocardial...Ch. 7 - Suppose the incidence rate of myocardial...Ch. 7 - Suppose the incidence rate of myocardial...Ch. 7 - Suppose the annual incidence of asthma in the...Ch. 7 - Prob. 18PCh. 7 - Suppose the annual incidence of asthma in the...Ch. 7 - Prob. 20PCh. 7 - Ribosomal 5S RNA can be represented as a sequence...Ch. 7 - Ribosomal 5S RNA can be represented as a sequence...Ch. 7 - Ribosomal 5S RNA can be represented as a sequence...Ch. 7 - Ribosomal 5S RNA can be represented as a sequence...Ch. 7 - Ribosomal 5S RNA can be represented as a sequence...Ch. 7 - Suppose we identify 50 women 50 to 54 years of age...Ch. 7 - The drug erythromycin has been proposed to...Ch. 7 - A pilot study of a new antihypertensive agent is...Ch. 7 - A pilot study of a new antihypertensive agent is...Ch. 7 - The proportion of deaths due to lung cancer in...Ch. 7 - The proportion of deaths due to lung cancer in...Ch. 7 - The proportion of deaths due to lung cancer in...Ch. 7 - The proportion of deaths due to lung cancer in...Ch. 7 - The proportion of deaths due to lung cancer in...Ch. 7 - Iron-deficiency anemia is an important nutritional...Ch. 7 - Iron-deficiency anemia is an important nutritional...Ch. 7 - Iron-deficiency anemia is an important nutritional...Ch. 7 - Iron-deficiency anemia is an important nutritional...Ch. 7 - Iron-deficiency anemia is an important nutritional...Ch. 7 - Iron-deficiency anemia is an important nutritional...Ch. 7 - Iron-deficiency anemia is an important nutritional...Ch. 7 - Iron-deficiency anemia is an important nutritional...Ch. 7 - Suppose a new test is proposed to identify...Ch. 7 - Suppose a new test is proposed to identify...Ch. 7 - Suppose a new test is proposed to identify...Ch. 7 - Suppose a new test is proposed to identify...Ch. 7 - Suppose a new test is proposed to identify...Ch. 7 - The mortality experience of 8146 male employees of...Ch. 7 - The mortality experience of 8146 male employees of...Ch. 7 - The mortality experience of 8146 male employees of...Ch. 7 - The mortality experience of 8146 male employees of...Ch. 7 - Researchers have reported that the incidence rate...Ch. 7 - Researchers have reported that the incidence rate...Ch. 7 - Researchers have reported that the incidence rate...Ch. 7 - Researchers have reported that the incidence rate...Ch. 7 - Left ventricular mass (LVM) is an important risk...Ch. 7 - Left ventricular mass (LVM) is an important risk...Ch. 7 - Left ventricular mass (LVM) is an important risk...Ch. 7 - Left ventricular mass (LVM) is an important risk...Ch. 7 - Prob. 60PCh. 7 - Previous studies have shown that supplementing the...Ch. 7 - Prob. 62PCh. 7 - Prob. 63PCh. 7 - Previous studies have shown that supplementing the...Ch. 7 - Prob. 65PCh. 7 - Prob. 66PCh. 7 - Refer to Data Set NIFED.DAT at...Ch. 7 - The combination of photochemotherapy with oral...Ch. 7 - The combination of photochemotherapy with oral...Ch. 7 - The combination of photochemotherapy with oral...Ch. 7 - Prob. 72PCh. 7 - Breast cancer is strongly influenced by a womans...Ch. 7 - Prob. 74PCh. 7 - An investigator wants to test a new eye drop that...Ch. 7 - Prob. 76PCh. 7 - Table 7.10 gives the itching scores reported by...Ch. 7 - Table 7.10 gives the itching scores reported by...Ch. 7 - Table 7.10 gives the itching scores reported by...Ch. 7 - Table 7.10 gives the itching scores reported by...Ch. 7 - Prob. 81PCh. 7 - Prob. 82PCh. 7 - Concurrent sexual partnerships are widely believed...Ch. 7 - Prob. 84PCh. 7 - Prob. 85PCh. 7 - Prob. 86PCh. 7 - Consider the birthweight data in Example 7.2. What...Ch. 7 - Consider the birthweight data in Example 7.2. Now...Ch. 7 - Prob. 89PCh. 7 - A screening program for neuroblastoma (a type of...Ch. 7 - A screening program for neuroblastoma (a type of...Ch. 7 - Prob. 92PCh. 7 - Prob. 93PCh. 7 - Prob. 94PCh. 7 - Prob. 95PCh. 7 - Prob. 96PCh. 7 - An experiment was performed to assess the efficacy...Ch. 7 - Medical errors are common in hospitals throughout...Ch. 7 - Prob. 99PCh. 7 - Prob. 100PCh. 7 - Prob. 101PCh. 7 - Prob. 102PCh. 7 - Prob. 103PCh. 7 - Prob. 104PCh. 7 - Osteoporosis is an important cause of morbidity in...Ch. 7 - Osteoporosis is an important cause of morbidity in...Ch. 7 - Osteoporosis is an important cause of morbidity in...Ch. 7 - Prob. 108PCh. 7 - Prob. 109PCh. 7 - Prob. 110PCh. 7 - Prob. 111PCh. 7 - Prob. 112PCh. 7 - Prob. 113PCh. 7 - A study was conducted in Sweden to relate the age...Ch. 7 - A study was conducted in Sweden to relate the age...Ch. 7 - A study was conducted in Sweden to relate the age...Ch. 7 - Prob. 117PCh. 7 - Prob. 118PCh. 7 - Prob. 119PCh. 7 - Prob. 120PCh. 7 - Prob. 121P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- Arthritis is a very commonly occurring affliction. It is a major cause of lost work time and often results in serious disability. Of the many types of arthritis, the most common type is osteoarthritis. This condition is frequently due to wear and tear in the joints and is more likely to be found in people over 50. It is very painful in the weight-bearing joints, such as the knees and hips. Cartilage wears away on the bone ends, causing pain and swelling. Osteoarthritis may develop after an injury such as a bone fracture or a joint dislocation. To reduce the amount of time osteoarthritis patients are absent from work, it is important for them to have effective pain relief. An experiment was conducted to compare the effectiveness of three new analgesics: A1, A2, and A3. A clinic evaluated a large group of patients and identified 45 patients with a moderate level of pain. Fifteen of the 45 persons were then randomly assigned to one of the three analgesics. The patients were then…arrow_forwardThe authors of a paper compared two different instruments for measuring a person's capacity for breathing out air. (This measurement is helpful in diagnosing various lung disorders.) The two instruments considered were a Wright peak flow meter and a mini-Wright peak flow meter. Seventeen people participated in the study, and for each person air flow was measured once using the Wright meter and once using the mini-Wright meter. The Wright meter is thought to provide a better measure of air flow, but the mini-Wright meter is easier to transport and to use. Use of the mini-Wright meter could be recommended as long as there is not convincing evidence that the mean reading for the mini-Wright meter is different from the mean reading for Wright meter. For purposes of this exercise, you can assume that it is reasonable to consider the 17 people who participated in this study as representative of the population of interest. Data values from this paper are given in the accompanying table.…arrow_forwardThe authors of a paper compared two different instruments for measuring a person's capacity for breathing out air. (This measurement is helpful in diagnosing various lung disorders.) The two instruments considered were a Wright peak flow meter and a mini-Wright peak flow meter. Seventeen people participated in the study, and for each person air flow was measured once using the Wright meter and once using the mini-Wright meter. The Wright meter is thought to provide a better measure of air flow, but the mini-Wright meter is easier to transport and to use. Use of the mini-Wright meter could be recommended as long as there is not convincing evidence that the mean reading for the mini-Wright meter is different from the mean reading for Wright meter. For purposes of this exercise, you can assume that it is reasonable to consider the 17 people who participated in this study as representative of the population of interest. Data values from this paper are given in the accompanying table.…arrow_forward
- A researcher hypothesizes that the lowering in cholesterol associated with weight loss is really due to exercise. To test this, the researcher carefully controls for exercise while comparing the cholesterol levels of a group of subjects who lose weight by dieting with a control group that does not diet. The difference between groups in cholesterol is not significant. Can the researcher claim that weight loss has no effect?arrow_forwardA medical student at a community college in city Q wants to study the factors affecting the systolic blood pressure of a person (Y). Generally, the systolic blood pressure depends on the BMI of a person (B) and the age of the person A. She wants to test whether or not the BMI has a significant effect on the systolic blood pressure, keeping the age of the person constant. For her study, she collects a random sample of 150 patients from the city and estimates the following regression function: Y= 15.50 +0.90B + 1.10A. (0.48) (0.35) The test statistic of the study the student wants to conduct (Ho: B, =0 vs. H4: B, #0), keeping other variables constant is. (Round your answer to two decimal places.) At the 5% significance level, the student will v the null hypothesis. Keeping BMI constant, she now wants test whether the age of a person (A) has no significant effect or a positive effect on the person's systolic blood pressure. So, the test statistic associated with the one-sided test the…arrow_forwardPatients immobilized for a substantial amount of time can de flop deep vein thrombosis (DVT), a blood clot in a leg or pelvis vein. DVT can have serious adverse health effects and can be difficult to diagnose. On its website, drug manufacturer Pfizer reports the outcome of a study looking at the effectiveness of the drug Fragmin (dalteparin) compared with that of a placebo in preventing DVT in immobilized patients. In a double-blind, multinational study, severely immobilized patients were randomly assigned to receive daily subcutaneous injections of either Fragmin or a placebo for 12 to 14 days and were followed for 90 days. The results, in number of patients experiencing a complication from DVT (including death), are summarized in the table below. Treatment outcome Complication No complication Drug Fragmin 42 1476 1518 Placebo 73 1400 1473 Find and interpret a 95% confidence interval for the ratio of the odds of a complication when taking Fragmin versus the odds of a complication when…arrow_forward
- In an observational study, it was noticed that people that eat more chocolate tend to have better blood flow than the general population. Researchers wonder whether the improved blood flow might be caused by flavanols (a molecule found in many foods). Dark chocolate contains a high concentration of flavanols, but milk chocolate contains a much lower concentration. How could the researchers design an experiment to determine the effects of flavanol on blood flow from the different types of chocolate?arrow_forwardPeople often wait till middle age to worry about having a healthy heart. However, recent studies have shown that earlier monitoring of risk factors such as blood pressure can be very beneficial (The Wall Street Journal, January 10, 2012). Having higher than normal blood pressure, a condition known as hypertension, is a major risk factor for heart disease. Suppose a large sample of individuals of various ages and gender was selected and that each individual’s blood pressure was measured to determine if they have hypertension. For the sample data, the following table shows the percentage of individuals with hypertension. Develop a side-by-side bar chart with age on the horizontal axis, the percentage of individuals with hypertension on the vertical axis, and side-by-side bars based on gender. What does the display you developed in part (a), indicate about hypertension and age? Comment on differences in gender. Age Male Female 20 - 34 11.0% 9.0% 35 – 44…arrow_forwardPeter Boag, studied the inheritance of beak depth in Galapagos finches by looking at the relationship between parent beak depth (in mm) and that of their offspring. He collected two sets of parent offspring data, once in 1976 and again in 1978. For both years he followed birds to determine which pairs belonged to which nests. Most of the parents had been previously captured so their beak depths were known. He then captured the offspring when they fledged and measured their beak depth. He calculated the "midparent" beak depth (the average beak depth of the two parents) and then compared that to beak depth of their offspring. Use regression analysis to estimate heritability for the trait beak depth from the Galapagos finches data in the above table.arrow_forward
- A researcher hypothesized that children's cholesterol levels may be affected by educating their parents on proper nutrition and exercise. A random sample of 40 families with a child between the ages of 10 to 15 who had been diagnosed with high cholesterol were recruited to participate in the study. All parents were provided with educational information on nutrition and exercise. After following the prescribed program, the child's total cholesterol was measured. The children's (the sample) mean cholesterol level was 185 with a standard deviation of 19.5. Is there significant evidence of that their cholesterol level after this intervention is lower than the population mean of 191?arrow_forwardAn aircraft emergency locator transmitter (ELT) is a device designed to transmit a signal in the case of a crash. Company A makes 80% of the ELTs, Company B makes 15% of them and Company C makes the other 5%. The ELTs made by Company A have a 7.8% rate of defects, the Company B ELTs have a 6.3% rate of defects and the Company C ELTs have 6.4% rate of defects. If a randomly selected ELT is tested and found to be defective, find is the probability that it was made by Company A? Give your answer to three decimal places.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Linear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage LearningCalculus For The Life SciencesCalculusISBN:9780321964038Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.Publisher:Pearson Addison Wesley,Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
- Big Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt
Linear Algebra: A Modern Introduction
Algebra
ISBN:9781285463247
Author:David Poole
Publisher:Cengage Learning
Calculus For The Life Sciences
Calculus
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:Pearson Addison Wesley,
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu...
Algebra
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:Houghton Mifflin Harcourt
Hypothesis Testing - Solving Problems With Proportions; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=76VruarGn2Q;License: Standard YouTube License, CC-BY
Hypothesis Testing and Confidence Intervals (FRM Part 1 – Book 2 – Chapter 5); Author: Analystprep;https://www.youtube.com/watch?v=vth3yZIUlGQ;License: Standard YouTube License, CC-BY