A store owner claims that the proportion of shoppers who use coupons is less than 25%.To test this claim, a randomsample of shoppers are monitored and checked for use of coupons.Assume that the test statistic for this hypothesis test is-1.17Assume the critical value for this hypothesis test is -1.282.Come to a decision for the hypothesis test and interpret your results with respect to the original claim.Select the correct answer belowO Reject the null hypothesis.There is enough evidence to support the claim that the proportion of shoppers who use coupons is less than25%.Fail to reject the null hypothesis.There is not enough evidence to support the claim that the proportion of shoppers who use coupons is lessthan 25%.

Decision based on critical value:For a left tailed test, if the test statistic is smaller than the…

Answered: A store owner claims that the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Similar questions

The recommended dietary allowance (RDA) of vitamin C for women is 75 milligrams (mg) per day. A hypothesis test, with a significance level of 0.05, is to be performed to decide whether adult women are, on average, getting less than the RDA of 75 mg per day. A researcher gathers data from a random sample of women in order to carry out the test. Determine the Null and Alternative hypotheses.
A ski lift manager is interested in the average daily number of ski lift users. In previous years, fewer than 945 people, on average, have used the ski lift daily over the winter season. The manager suspects this average has increased in recent years. If the ski lift manager chooses to use the p-value approach for his hypothesis test, what does he need to compare the p-value to?
In a survey taken in 2020, 20 out of 50 women and 17 out of 45 men said that they felt our country was headed in the wrong direction regarding universal health care. Do these data provide sufficient evidence at the 0.01 level of significance to conclude that the proportions of women and men that feel out country is headed in the wrong direction regarding healthcare are equal? Use the P-Value Method of Testing. In your work space below, you will need to have -1. The null hypothesis, Ho 2. The alternative hypothesis, H1 3. The test statistic 4. The type of test(left, right, two-tailed) and the p-value 5. The decision to accept Ho or reject Ho
The American Automobile Association (AAA) claims that the proportion of dog owners who have allowed their dog to sit on their lap while they are driving is 0.17. You believe a different proportion of dog owners have driven while their dog is sitting on their lap. In a survey of a random sample of 318 dog owners, you find that the proportion in the sample who admit to having driven with a dog on their lap is 0.19. Use this information to conduct a hypothesis test at a significance (or alpha) level of 0.05. Given the P-value you determined to answer Question 9, should you reject or fail to reject the null hypothesis? Please explain. 2. Are the results of this hypothesis test statistically significant? Please explain why or why not.
The American Automobile Association (AAA) claims that the proportion of dog owners who have allowed their dog to sit on their lap while they are driving is 0.17. You believe a different proportion of dog owners have driven while their dog is sitting on their lap. In a survey of a random sample of 318 dog owners, you find that the proportion in the sample who admit to having driven with a dog on their lap is 0.19. Use this information to conduct a hypothesis test at a significance (or alpha) level of 0.05. What will the hypotheses be? Ho: Ha: What is the test statistic? Please calculate this value below. What is the P-value?
Explain whether or not rejecting the null hypothesis makes the alternative hypothesis true and why. If I conduct a hypothesis testing with Type I error set at 0.05 and a resulting p-value of 0.3, what would my conclusion be?
A newsletter publisher believes that over 33% of their readers own a laptop. For marketing purposes, a potential advertiser wants to confirm this claim. After performing a test at the 0.02 level of significance, the advertiser decides to reject the null hypothesis. What is the conclusion regarding the publisher's claim?
Based on this information, give us the t statistic for the sample and the standardized effect size of the hypothesis test. Then tell if we should reject or fail to reject the null hypothesis.
A newsletter publisher believes that less than 50% of their readers own a laptop. For marketing purposes, a potential advertiser wants to confirm this claim. After performing a test at the 0.05 level of significance, the advertiser decides to reject the null hypothesis. What is the conclusion regarding the publisher's claim?
A magazine article reported that 11% of adults buy takeout food every day. A fast-food restaurant owner surveyed 200 customers and found that 36 said that they purchased takeout food every day. At α=0.01, is there evidence to believe the article's claim? Use the P-value method with tables. Do not round intermediate steps. State the hypotheses and identify the claim with the correct hypothesis.
According to a restaurant owner, the percentage of kindergartners in the U.S. who say pancakes are their favorite food is less than 25%. Out of 200 randomly selected kindergartners who were surveyed, 45 said that pancakes are their favorite breakfast food. Using a complete test of hypothesis with a = 0.05 , is there enough evidence to support the claim of the restaurant owner? You may refer back to the previous problem for the steps required for a test of hypothesis.
If, in a one-tail hypothesis test where H0 is only rejected in the upper tail, the p-value=0.2047 and ZSTAT=+0.82, what is the statistical decision if the null hypothesis is tested at the 0.07 level of significance? What is the statistical decision?

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