Basic Business Statistics, Student Value Edition (13th Edition)
13th Edition
ISBN: 9780321946393
Author: Mark L. Berenson, David M. Levine, Kathryn A. Szabat
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 4PS
If you use a 0.01 level of significance in a two-tail hypothesis test, what is your decision rule for rejecting
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You are asked to test the null hypothesis at the .05 level of significance and you end up with z-observed being equal to -1.83. What would be the appropriate decision to make?
In a hypothesis test with a significance level of a = 0.01, we should reject the null hypothesis if
Question 3 options:
t = 0.005
z = 0.04
p = 0.005
p = 0.04
Do you reject or fail H0
Chapter 9 Solutions
Basic Business Statistics, Student Value Edition (13th Edition)
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 - Prob. 13PSCh. 9 - The quality-control manager at a compact...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 - Prob. 26PSCh. 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 - Prob. 35PSCh. 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 - Prob. 46PSCh. 9 - Prob. 47PSCh. 9 - Prob. 48PSCh. 9 - You are the manager of a restaurant that delivers...Ch. 9 - A survey of nonprofit organizations showed that...Ch. 9 - Prob. 51PSCh. 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 - Prob. 55PSCh. 9 - The worldwide market share for the Mozilla Firefox...Ch. 9 - One of the issues facing organizations Is...Ch. 9 - Prob. 58PSCh. 9 - A cellphone provider has the business objective of...Ch. 9 - Prob. 60PSCh. 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 - Prob. 71PSCh. 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...
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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
- What is an experiment?arrow_forwardIf you use a 0.05 level of significance in a two-tail hypothesis test, what decision will you make if ZSTAT=+1.55?arrow_forwardIn a study to test the effectiveness of barbless fishing hooks, 855 fish were caught with this type of hook, the hook was removed, and the fish was released. 26 of the released fish died. Suppose the hypotheses are H0: p = .04 and Ha: p < .04. What is the standardize test statistic (z-score) of the hypothesis test? A. -1.431 B. 0.05 C. 0.0304arrow_forward
- Find the P-value for a left-tailed hypothesis test with a test statistic if z=-1.26. Decide whether to reject Ho if the level of significance is a =0.05.arrow_forwardUnder what circumstances is the t statistic used instead of the Z score for a hypothesis test?arrow_forwardA random sample of students attending a large university has been selected. Is there a statistically significant difference between Liberal Arts majors and other students in the mean number of books (other than those required by course work) read per year? Use α = .05 and the five-step model to conduct the hypothesis test. Write a sentence or two interpreting your results. Liberal Arts X1 = 16.2 s1 =2.3 N1 =236 Other Students X2 = 13.7 s2 =9.0 N2 =321arrow_forward
- If a hypothesis is rejected at significance level α = 0.01, is it possible that the hypothesis is not rejected if the same test was done at significance level α = 0.05 (with everything else staying the same)?arrow_forwardAccording to the most recent General Social Survey, 70% of adults watch TV nightly. A researcher believes that the proportion of college students who watch TV nightly is less than this. To test this claim the research samples 400 college students and finds that 276 watch TV nightly. At the 0.05 level of significance does this data provide evidence to suggest that the proportion of college students who watch TV nightly is less than 70%? Select the correct hypothesis test for this problem:arrow_forwardA research report describing the results from a repeated-measures t test states that “t(22) = 1.71, p > .05.” From this report, what was the outcome of the hypothesis test?arrow_forward
- Illustrate the null hypothesis for a correlated t test?arrow_forwardThe p-value for a hypothesis test turns out to be 0.05015. At a 2% level of significance, what is the proper decision? Reject H0H0 Fail to reject H0arrow_forwardCan you help me find the test statistic for this hypothesis test and help me determine the P value?arrow_forward
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