Of a random sample of 187 auditors, 73 indicated some measure of agreement with the statement "Cash flow is an important indication of profitability." Test at the 1% significance level against atwo-sided alternative hypothesis the null hypothesis that one-half of the members of this population would agree with this statement. Also find and interpret the p-value of this test.O A. Reject H, It-Za/2 or reject H, It> Za/2Po(1-Po) 'nPo(1 -Po) Inp-PoO B. Reject H, if< -Z,Po(1-Po) Inp-PoO C. Reject H, if>Z,Po(1-Po) InDetermine the value(s) of - zg, Za, or tzu/2 as appropriate for this test.2.58, - 2.58(Round to two decimal places as needed. Use a comma to separate answers as needed.)Calculate the test statistic.p-Po= - 3.00 (Round to two decimal places as needed.)Po (1-Po) InState the conclusion of this test.Rejectthe null hypothesis. It is not likely that one-half of the members of the population would agree with the statement.What is the p-value of this test?The p-value is(Round to three decimal places as needed.)

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Answered: Of a random sample of 187 auditors, 73…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A psychologist would like to estimate the proportion of Americans that say "the future of the nation is a significant source of stress for me." To help form an estimate, the psychologist randomly selected 918 Americans and found that 69.7% of the sample agreed with the statement "the future of the nation is a significant source of stress for me." Using a 90% confidence level, determine the margin of error, EE, and a confidence interval for the true proportion of all Americans that say the "the future of the nation is a significant source of stress for me." Report the confidence interval using interval notation. Round solutions to four decimal places, if necessary. The margin of error is given by E= A 90% confidence interval is given by=
Researchers studying the spread of an insect called the hemlock woolly adelgid find that the bugs have infested 23% of a random sample of 345 hemlock trees in the study area. What's a 99% confidence interval for the population proportion of infested hemlock trees in the study area?
Describe the circumstances under which a confidence interval and hypothesis test yield the same results?
USA Today reported that about 47% of the general consumer population in the United States is loyal to the automobile manufacturer of their choice. Suppose Chevrolet did a study of a random sample of 1008 Chevrolet owners and found that 487 said they would buy another Chevrolet. Does this indicate that the population proportion of consumers loyal to Chevrolet is more than 47%? Use ? = 0.01. (a) What is the level of significance?State the null and alternate hypotheses. H0: p > 0.47; H1: p = 0.47H0: p = 0.47; H1: p ≠ 0.47 H0: p = 0.47; H1: p < 0.47H0: p = 0.47; H1: p > 0.47 (b) What sampling distribution will you use? The standard normal, since np < 5 and nq < 5.The standard normal, since np > 5 and nq > 5. The Student's t, since np < 5 and nq < 5.The Student's t, since np > 5 and nq > 5. What is the value of the sample test statistic? (Round your answer to two decimal places.)(c) Find the P-value of the test statistic. (Round your answer to four…
Apple Computer believed that 36 percent of its smartphone customer own the most recent model of iPhone (Ho). To test this hypothesis, it gathered customer data using a CRM software. The results indicated that only 30 percent of the iPhone users owned iPhone 11, the most recent model. Assume that this percentage value was based on a sample of 300 users. Test its hypothesis using 95% confidence level.
A sample of 1200 females and 1000 males found that 78.3% of females and 35.1% males supported increased funding of arts. Construct a 90% confidence interval around the difference in proportions.
Kmart decided to inventory all of its furniture stock for a year end evaluation. At that time there were 768 items of furniture. A random sample of 40 items of furniture were selected for audit, with sample mean=$249.06 and SD=$92.58. Construct a 95% confidence interval estimate of the total value of furniture stock for year end.
A survey of 672 audited tax returns showed that 448 resulted in additional payments. Construct a 95 percent confidence interval for the true percentage of all audited tax returns that resulted in additional payments.
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According to a poll, 82% of California adults (417 out of 506 surveyed) feel that education is one of the top issues facing California. We wish to construct a 90% confidence interval for the true proportion of California adults who feel that education is one of the top issues facing California. 1.Find the error bound. (Round your answer to three decimal places.)

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