Pearson eText for Basic Business Statistics -- Instant Access (Pearson+)
14th Edition
ISBN: 9780137400119
Author: MARK BERENSON, David Levine
Publisher: PEARSON+
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 9, Problem 54PS
In Problem 9.52 and 9.53, suppose you are testing the null hypothesis
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Example 1:
A study in 2000 found that 85 out of 100 Virginia residents own a car. A simple random
sample of 2500 people from Virginia was gathered, and the proportion of people who own a
car was found to be 0.84. Perform a hypothesis test at the 0.05 significance le vel (a) to test
the claim that the proportion of car owners in Virginia is now less than 85%.
A researcher is wondering whether the drinking habits of adults in a certain region of the country are in the same proportion as the general population of adults. Suppose a recent study stated that the proportion of
adults who reported drinking once a week or less in the last month was 0.26. The researcher's null hypothesis for this test is Ho: p = 0.26 and the alternative hypothesis is H₂ p > 0.26. The researcher collected
data from a random sample of 75 adults in the region of interest. To continue the study into the drinking habits of adults, the researcher decides to collect data from adults working in "blue collar" jobs to see
whether their drinking habits are in the same proportion as the general public. The null hypothesis for this test is Ho: p=0.26 and the alternative hypothesis is H₂ p > 0.26. The researcher collected data from a
random sample of 90 adults with "blue collar" jobs of which 30 stated that they drank once a week or less in the last month. Assume that the…
A researcher is wondering whether the drinking habits of adults in a certain region of the country are in the same proportion as the general population of adults. Suppose a recent study stated that the proportion of adults who reported drinking once a week or less in the last month was 0.26. The researcher's null hypothesis for this test is
H0:
p=0.26
and the alternative hypothesis is
Ha: p>0.26.
The researcher collected data from a random sample of 75 adults in the region of interest. To continue the study into the drinking habits of adults, the researcher decides to collect data from adults working in "blue collar" jobs to see whether their drinking habits are in the same proportion as the general public. The null hypothesis for this test is
H0:
p=0.26
and the alternative hypothesis is
Ha: p > 0.26.
The researcher collected data from a random sample of 90 adults with "blue collar" jobs of which 30 stated that they drank once a week or less in the last month. Assume that…
Chapter 9 Solutions
Pearson eText for Basic Business Statistics -- Instant Access (Pearson+)
Ch. 9 - If you use a 0.005 level of significance in a...Ch. 9 - If you use a 0.05 level of significance in a...Ch. 9 - If you use a 0.10 level of significance in a...Ch. 9 - If you use a 0.01 level of significance in a...Ch. 9 - What is your decision in problem 9.4 if...Ch. 9 - What is the p -value if, in a two-tail hypothesis...Ch. 9 - In problem 9.6, what is your statistical decision...Ch. 9 - What is the p-value if, in a two -tail hypothesis...Ch. 9 - In the U.S. legal system, a defendant is presumed...Ch. 9 - Suppose the defendant in Problem 9.9 is presumed...
Ch. 9 - Many consumer groups feel that U.S. Food and Drug...Ch. 9 - As a result of complaints from both students and...Ch. 9 - Do business senior at your school prepare for...Ch. 9 - The quality- control manager at a light emitting...Ch. 9 - Suppose that in problem 9.14, the standard...Ch. 9 - A bottled water distributor wants to determine...Ch. 9 - Suppose that in Problem 9.16, the standard...Ch. 9 - If, In a sample of n=16 selected from a normal...Ch. 9 - In Problem 9.18, how many degrees of freedom does...Ch. 9 - In Problem 9.18, 9.19, what are the Critical...Ch. 9 - In, Problem 9.18, 9.19, and 9.20, what is your...Ch. 9 - If, in a sample of n=16 selected from a...Ch. 9 - If, in a sample of n=160 selected from a...Ch. 9 - You are the manager of a restaurant for a...Ch. 9 - A manufacturer of chocolate candies uses machines...Ch. 9 - A marketing researcher wants to estimate the mean...Ch. 9 - The U.S. Department of Transportation requires...Ch. 9 - The file FastFood contains the amount that a...Ch. 9 - An insurance company has the business objective of...Ch. 9 - The following data (in Drink) represent the amount...Ch. 9 - One of the major measures of the quality of...Ch. 9 - A manufacturing company produces steel housings...Ch. 9 - One operation of a steel mill is to cut pieces of...Ch. 9 - In Problem 3.69 on page 156, you were introduced...Ch. 9 - We Are Social and Hootsuite reported that the...Ch. 9 - In a one-tail hypothesis test where you reject H0...Ch. 9 - In Problem 9.36, what is your statistical decision...Ch. 9 - In a one-tail hypothesis test where you reject H0...Ch. 9 - In Problem 9.38, what is your statistical decision...Ch. 9 - In a one-tail hypothesis test where you reject H0...Ch. 9 - In Problem 9.40, what is your statistical decision...Ch. 9 - In a one-tail hypothesis test where you reject H0...Ch. 9 - In Problem 9.42, what is your statistical decision...Ch. 9 - In a one-tail hypothesis test where you reject H0...Ch. 9 - In Problem 9.44, what is your statistical decision...Ch. 9 - The Washington Metropolitan Area Transit Authority...Ch. 9 - CarMD reports that after two years of flat U.S....Ch. 9 - Patient waiting is a common phenomenon the...Ch. 9 - You are the manager of a restaurant that delivers...Ch. 9 - A Survey of nonprofit organization showed that...Ch. 9 - The population mean waiting time to check out of a...Ch. 9 - If, a random sample of 400 items, 88 are...Ch. 9 - In Problem 9.52, if the null hypothesis is that 20...Ch. 9 - In Problem 9.52 and 9.53, suppose you are testing...Ch. 9 - According to a recent National Association of...Ch. 9 - The worldwide market share for the Chrome web...Ch. 9 - One of the issues facing organizations Is...Ch. 9 - What are companies’ biggest obstacles to...Ch. 9 - A cellphone provider has the business objective of...Ch. 9 - Actuation Consulting conducted a global survey of...Ch. 9 - What is the difference between a null hypothesis,...Ch. 9 - What is the difference between a Type I error and...Ch. 9 - What is meant by the power of a test?Ch. 9 - What is the difference between a one -tail test...Ch. 9 - What is meant by a p-value?Ch. 9 - How can a confidence interval estimate for the...Ch. 9 - What is the six-step critical value approach to...Ch. 9 - What is the five-step p-value approach to...Ch. 9 - In hypothesis testing, the common level of...Ch. 9 - Financial institutions utilize prediction models...Ch. 9 - IAB conducted a study of 821 U.S. adults to...Ch. 9 - The owner of a speciality coffee shop wants to...Ch. 9 - An auditor for a government agency was assigned...Ch. 9 - A bank branch located in a commercial district of...Ch. 9 - Call centers today play an important role in...Ch. 9 - An important quality characteristic used by the...Ch. 9 - Studies conducted by the manufacturer of Boston...Ch. 9 - The manufacturer of Boston and Vermont asphalt...Ch. 9 - Referring to the results of problems 9.76 through...
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
- If a game gives payoffs of $10 and $100 with probabilities 0.9 and 0.1, respectively, then the expected value of this game is E=0.9+0.1= .arrow_forwardSuppose that we reject a null hypothesis at the 0.02 level of significance. The null hypothesis will definitely also be rejected for all the following α-values except for: A. 0.01B. 0.2C. 0.1D. 0.4E. 0.03arrow_forwardWhich is the correct null hypothesis based on this statement: People with diabetes have higher systolic blood pressure than people without diabetes? People with diabetes have lower systolic blood pressure than people without diabetes. People with diabetes have equal systolic blood pressure when compared to people without diabetes. People with diabetes have a systolic blood pressure equal to or lower than people without diabetes. None of these are a null hypothesis.arrow_forward
- Question 2 A company worries that less than 50% of it's employees have been boosted. They want to test Ho :p = 0.5 vs H :p<0.5. They plan to randomly select 15 employees and will reject the null hypothesis if less than 4 have been boosted. Determine what the level of significance, a, is for this test.arrow_forwardA researcher is wondering whether the drinking habits of adults in a certain region of a country are different than those in the general adult population. Suppose a recent study states that the proportion of adults in the general population who reported drinking once a week or less in the last month is 0.26. The null hypothesis for this test is p = 0.26 and the alternative hypothesis is p+ 0.26. The researcher collected data from 150 surveys he handed out at a busy park located in the region. Are the conditions for proceeding with a one-proportion z-test satisfied? If not, which condition is not satisfied? O a. Conditions are not satisfied; the researcher did not collect a random sample. O b. Conditions are not satisfied; the population of interest is not large enough to assume independence. Oc. Conditions are not satisfied; the sample size is not large enough. O d. All conditions are satisfied.arrow_forwardQuestion 2 A company worries that less than 50% of it's employees have been boosted. They want to test Ho: p 0.5 vs H1:p<0.5. They plan to randomly select 15 employees and will reject the null hypothesis if less than 4 have been boosted. Determine what the level of significance, a, is for this tent.arrow_forward
- The Subject is Engineering Data Analysisarrow_forward4. Conceptual Question: A one sample t-test is conducted for a data set and you fail to reject the null hypothesis at a =.05. If you conducted the same hypothesis test, but use a =.01 what would be the outcome of the t-test?arrow_forwardA researcher expects a treatment to affect the scores for individuals in a population. The treatment is evaluated using a two-tailed hypothesis test, and the test produces z = +2.65. Based on this result, what is the correct statistical decision? a. The researcher should reject the null hypothesis with α = .05 b. The researcher should reject the null hypothesis with α = .01 c. The researcher should fail to reject Ho with either α = .05 or α = .01 d. Cannot answer without additional informationarrow_forward
- part D E Farrow_forwardA decade-old study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal was 69% . Suppose that we have reason to believe that this proportion has changed, and we wish to carry out a hypothesis test to see if our belief can be supported. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test. H0:H1:=arrow_forwardA significance level for a hypothesis test is given as α = 0.01 α=0.01 . Interpret this value. The probability of making a Type I error is 0.01. There is a 1% chance that the sample will be biased. The probability of a Type II error is 0.01. The smallest value of α α that you can use and still reject H 0 H0 is 0.01.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
College Algebra
Algebra
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Introduction to experimental design and analysis of variance (ANOVA); Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=vSFo1MwLoxU;License: Standard YouTube License, CC-BY