During the exam you will be using a sample of 500 adults with the following variables: ● genhelf - variable recording general self-reported health coded 1 = very good, 2 = good, 3 = fair, '4 = poor ● sbp - variable recording systolic blood pressure •age - age of the respondent in years • sex-coded 1 = male and 2 = female ● hi_sbp - indicator of high blood pressure coded 1 if the respondent's sbp is 130 or higher and O otherwise What type of chart is MOST appropriate for the variable sbp? Histogram O Bar Chart O Pie Chart
Q: high, extremely low, or in the typical range. Match them accordingly! North Carolina: µ = 20, o =…
A: It is given that For North Carolina μ = 20, σ = 10.1 For California μ = 80, σ = 20.5 For…
Q: 8.67 Free recall memory strategy. Psychologists who study O memory often use a measure of "free…
A:
Q: At a local high school, GPA's are normally distributed with a mean of 2.9 and standard deviation of…
A: Given problem Given that At a local high school, GPA's are normally distributed with a mean of…
Q: ose you were given the following data for a section of STAT 210 with 126 enrolled students: 63 26 47…
A: From the given information we want to find correct Option.
Q: Annie is concerned over a report that "a woman over age 40 has a better chance of being killed by a…
A:
Q: In a Pew Research Center Poll, 74% of 3012 adults surveyed said that they use internet. 6. A point…
A: 6) It is given that 74% of 3012 adults surveyed said that they use internet.
Q: You are interested in finding a 90% confidence interval for the average commute that non-…
A:
Q: Let X₁, X₂, ..., X denote a random sample with size n from the ean 0₁, and Y₁, Y₂, ..., Yn denote a…
A: Given information: Suppose that X1, X2, … , Xn are independent and identically distributed from a…
Q: 4. If A and B are mutually exclusive events and both have nonzero probabilities, then it is…
A: 4) Mutually exclusive events Two or more events are said to be mutually exclusive if they have no…
Q: here exists Grades on an examination with a mean of 76 and standard deviation of 6.5. a.) What is…
A: Solution-: Given: μ=76,σ=6.5 We want to find, (a) The percentage of the students that will have a…
Q: I roll a dice (6 side) and then kick a soccer ball toward a goal that many times, each shot has a…
A:
Q: The average math SAT score is 523 with a standard deviation of 118 A particular high school claims…
A: Given that The average math SAT score is 523 with a standard deviation of 118. Mean (μ) = 523…
Q: If the mean score on the final exam is 70 with a standard deviation of 10 then the test score of a…
A: Given Mean =70 Standard deviations=10 Z=-1.5
Q: Motor Vehicles office tried a new customer service system after people complained they were wasting…
A: Formula Used: Standard deviation σ = ∑F·X2-∑FX2NN
Q: Assume the least squares equation is Ŷ= 10 + 20X. What does the value of 10 in the equation…
A: The above regression equation is y on x. So option (i) is incorrect. Here 10 is intercept of x on…
Q: The following data shows the car rental companies and their cars and corresponding income in the…
A: The objective is to find the equation of the regression line for the given data: X Y 63 7 29…
Q: The distribution of average hours of sleep per weeknight among college students is found to be…
A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…
Q: Assume that a sample is used to estimate a population mean p. Use the given confidence level and…
A: From the provided information, Sample size (n) = 51 Sample mean (x̄) = 97 Standard deviation (s) =…
Q: that has a sharper-rising center peak than the peak of a normal is called and has a kurtosis. A…
A: Kurtosis measures how heavy the tails of the distribution are.
Q: A random sample of 50 plants was selected from a field containing one-year- variety of guayule, a…
A: N O A 6.93 5.7 6.34 6.42 5.01 4.25 7.01 5.82 7.7 7.31 5.24 6.36 6.81 5.88 5.51 7 6.04…
Q: 2. The Effect of Cat Food Brand on the Cat's Hair Growth INDEPENDENT VARIABLE DEPENDENT VARIABLE…
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: The phrase "the 97 percent confidence interval for the mean is (70.87, 84.76)" can be translated as…
A: Solution
Q: The heights (in cm) and weights (in kg) of thirteen male and ten female students are given below:…
A: * SOLUTION :- Given that ,
Q: A sample consists of the following n = 6 scores: -2, 7, 6, 4, 1, 3 What is the mean? M = 3.17 What…
A: Solution-: Given data: -2,7,6,4,3,1 We want to find (a) Mean (M)=? (b) The standard deviation (s)…
Q: The number of mistakes made on a typing test is Normally distributed. Five office employees---Kelly,…
A: On observing the z-score, Stanley made the least mistakes on the typed test because his z-score is…
Q: For each situation, identify the sample size n, the probability of success p, and the number of…
A: Given: p(smoke) = 0.15, n = 25
Q: According to a recent study, more than 900 people move to Florida each day! In fact, data show that…
A: Given: Sample size "n" = 256 Population proportion "P" = 0.28 Formula Used: σp = P(1-P)n
Q: The restaurant in a large commercial building provides coffee for the occupants in the building. The…
A:
Q: b. Compute the probability that a randomly selected peanut M&M is blue or red. 0.38 X c. Compute the…
A:
Q: An experiment was conducted to determine the effect of machining factors on ceramic strength. Two…
A: Given:Level of significance=α=0.01ANOVA table.This is 23 experiment that is 2 levels and 3…
Q: The following data shows the car rental companies and their cars and corresponding income in the…
A: From the given data The scatterplot is
Q: The Precision Scientific Instrument Company manufactures thermometers that are supposed to give…
A: Let z be the standard normally distributed random variable with mean 0 and standard deviation 1
Q: You take a random sample of 20 female toco toucans, and you find that they have an average body mass…
A: Given that Sample size n =20 Sample mean =546.47 Standard deviation =104.87
Q: 1234S 5 6 7 8 9 10 11 12 2 6,2 1, 5, 2, 7 7, 8, 4 2,5 3,6 2 6 where 7 | 2 = 72 students Calculate…
A: Solution-; From the stem-and-leaf chart we get data as below:…
Q: Can you give an example please?
A:
Q: The analytic scores on a standardized aptitude test are known to be normally distributed with mean μ…
A:
Q: A large population of college students were surveyed regarding their uses of technology. One…
A: Given Mean=3.7 Standard deviations=1.2
Q: Data were collected on the top 1.000 financial advisers. Company A had 239 people on the list and…
A: Given: s1=583s2=484Sample size:n1=16n2=10
Q: According to the Indian River Economic Development Council, the average household income in Indian…
A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…
Q: A community college institutional researcher wants to analyze a data set with age (in years)…
A: We use a one-way Anova test.
Q: The table shows unit labor requirement for four activ 2, 3, and 4. Which one in the most likely to…
A: From the above table, we can see that the The total number of unskilled labour who does activity…
Q: Suppose the number of students in a class for the Business Statistics program at a University has a…
A: Given Mean=23 Standard deviations=4.3 n=15
Q: For the following sample of n=6 scores, calculate SS: [6, 4, 5, 25, 7, 7]
A: Given 6,4,5,25,7,7 n=6
Q: .5 (a) For a certain type of manufactured product, the weight is expected to be 350 gm, and the…
A:
Q: Write the H. and Ha of the given statement below. 1. Is there a significant difference between the…
A: Since you have posted a question with multiple sub-parts, we will solve first 3 sub-parts for you.…
Q: The graph of the standard deviation indicates that the tighter the probability distribution, the…
A: For the given statement, we need to answer if it is true or false.
Q: Will you please type the text? It's not legible. Thanks!
A: It is given that the mean is 551.2 and the standard deviation is 15.
Q: 1. What is the mathematical symbol to be used in stating the claim: The average grade of Grade 11…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: A study was done to look at the relationship between number of movies people watch at the theater…
A: Given n=10
Q: Use z scores to compare the given values. The tallest living man at one time had a height of 246 cm.…
A: z-score formula is
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- People 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…Guéguen and Jacob (2012) asked waitresses to wear different colored T-shirts on differentdays for a six-week period and recorded the lips left by male customers. The results show that male customers gave significantly bigger tips to waitresses when they were wearing red. For this study, identify the independent variable and the dependent variable.In 2007, a university study was published investigating the crash risk of alcohol impaired driving. Data from 2,871 crashes were used to measure the association of a person’s blood alcohol level (BAC) with the risk of being in an accident. The table below shows results from the study. The relative risk is a measure of how many times more likely a person is to crash. So, for example, a person with a BAC of 0.09 is 3.54 times as likely to crash as a person who has not been drinking alcohol. BAC 0 .01 .03 .05 .07 .09 .11 .13 .15 .17 .19 .21 risk 1 1.03 1.06 1.38 2.09 3.54 6.41 12.6 22.1 39.05 65.32 99.78 a. Find the best fit exponential model for the risk of having an accident based on your BAC. b. Use your model to predict the relative risk of having an accident for a person with a BAC of 0.08 which is the legal limit in…
- A recent company survey found that employees who were regular participants in the company fitness program had fewer sick days compared to employees who did not participate. However, because this study was not a true experiment, a cause-and-effect relationship between regular exercise and fewer sick days cannot be determined. Identify a confounding variable that might explain the relationship between regular exercise and fewer sick days that was found by the company survey. Describe a between-subjects design that you could use to determine whether participation in the exercise program caused fewer sick days. What factors would you control for (don’t forget about the confounding variable you previously identified!)? How would a repeated measures (within-subjects) design be different, and would it be appropriate for answering this research question? Why or why not?Report the correlations between the three independent variables (age, educ and Protestant) and your dependent variable (childs). Which category had the correlation that was the weakest?It has been hypothesized that allergies result from a lack of early childhood exposure to antigens. If this hypothesis were true, then we would expect allergies to be more common in very hygienic households with low levels of bacteria and other infectious agents. To test this theory, researchers at the University of Colorado sampled the houses of 61 children 9-24 months old and recorded two variables: (1) whether the child tested positive for allergies and (2) the concentration of bacterial endotoxin in the house dust (endotoxin units per ml, EU/ml)1. The following are the endotoxin levels at the homes of the 51 children tested negative for allergies. 708.23 911.60 976.81 1316.63 262.74 9772.08 370.76 229.16 2570.51891.19 3163.20 1777.65 1288.57 436.23 2631.63 1173.52 911.67 7942.42 740.32 356.92 1175.48 1480.55 2754.61 575.62 573.89 468.26 1000.71 364.22 1025.26 1022.04 645.41 363.57 977.47 1022.75 1860.63 371.13 174.73 399.68 1479.77 2882.96…
- In a study of 301 Hispanic women living in San Antonia, Texas, one variable of interest was the percentage of subjects with impaired fasting glucose (IFG). IFG refers to a metabolic stage intermediate between normal glucose homeostasis and diabetes. In the study, 24 women were classified in the IFG stage. The article cites population estimates for IFG among Hispanic women in Texas as 6.3%. Is there sufficient evidence to indicate the population of Hispanic women in San Antonio has a prevalence of IFG higher than 6.3%? Use 95% confidence level and the p -value method to form your conclusion. The computed z score was 1.193. Find the p-value.In a study of 301 Hispanic women living in San Antonia, Texas, one variable of interest was the percentage of subjects with impaired fasting glucose (IFG). IFG refers to a metabolic stage intermediate between normal glucose homeostasis and diabetes. In the study, 24 women were classified in the IFG stage. The article cites population estimates for IFG among Hispanic women in Texas as 6.3%. Is there sufficient evidence to indicate the population of Hispanic women in San Antonio has a prevalence of IFG higher than 6.3%? Use 95% confidence level and the p -value method to form your conclusion. Answer the problem in a complete sentence.In a study of 301 Hispanic women living in San Antonia, Texas, one variable of interest was the percentage of subjects with impaired fasting glucose (IFG). IFG refers to a metabolic stage intermediate between normal glucose homeostasis and diabetes. In the study, 24 women were classified in the IFG stage. The article cites population estimates for IFG among Hispanic women in Texas as 6.3%. Is there sufficient evidence to indicate the population of Hispanic women in San Antonio has a prevalence of IFG higher than 6.3%? Use 95% confidence level and the p -value method to form your conclusion. Choose the correct null and alternative hypothesis.
- A group of disabled women ages 65 and older were followed for several years. It was found that those who had a vitamin B12 deficiency were twice as likely to suffer from severe depressions than those who did not.a. Describe the type of study being performed.b. Describe the explanatory variable(s) and response variable(s).Several epidemiologists conducted a cohort study of the effect of mercury exposure on the development of brain cancer. Subjects were followed for ten years. There were a total of 150,000 people in the study. Among the subjects, 76,000 were exposed to mercury and the rest were not. 52,000 of those exposed to mercury developed brain cancer, and only 1,200 of those unexposed to mercury developed brain cancer. Please create a two-by-two table. Calculate the relative risk and interpret it in a sentence. Calculate the attributable risk and interpret. Calculate the percent attributable risk and interpret. Assume that 30% of people in Rhode Island are exposed to mercury, calculate and interpret the population attributable risk and calculate and interpret the percent population attributable risk.A recent study randomly selected women from various countries around the world and collected information about diet and health. The women who at a Paleo diet had lower rates of Osteoporosis when compared to the other women in the study. A. Which is the explanatory variable and why. B. Which is the response variable and why. C. Write a conclusion appropriate for this type of study that describes the relationship between the explanatory and response variables.