Section 7.1-MATattps://learn.zybooks.com/zybook/MAT-240-J4373-OL-TRAD-UG.22EW4/chapter/7/section/1AQ to240: Applied Statistics horme >7.1: Hypothesis test for a population proportionzyBooks catalogHelp/CHALLENGEACTIVITY7.1.3: Hypothesis test for a population proportion.387674.1891676.qx3zgy7Jump to level 1A home improvement company is interested in improving customer satisfaction rate from the 63% currentlyclaimed. The company sponsored a survey of 287 customers and found that 190 customers were satisfied.Determine whether sufficient evidence exists that the customer satisfaction rate is different than the claimby the company.What is the test statistic 2?Ex: 1.23 :What is the p-value? Ex: 0.456Does sufficient evidence exist that the customer satisfaction rate is different than the claim by the companyat a significance level of a = 0.05? Select vCheckNextFeedback?CHALLENGE7.1.4: Excel: Hypothesis test for a population proportion.ACTIVITYClick this link to download the spreadsheet for use in this activity74°FCF5PrtScInsertF4F6F7F8F9F10F11F1289.C0

Given that Sample size n =287 Favorable cases x =190 Sample proportion p^=x/n =190/287 =0.6620

Answered: Jump to level 1 A home improvement…

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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What is the p-value?
The Bureau of Labor Statistics reports that the official unemployment rate for Black people was 10.4% and 4.7% for White people in February 2015. Select all correct answers for this question. O The samples of white and black people are independent. The explanatory variable is the unemployment rate. The response variable is the unemployment rate. The response variable is race.
find p value and its meaning please A survey of 1000 adults from a certain region asked, "If purchasing a used car made certain upgrades or features more affordable, what would be your preferred luxury upgrade?" The results indicated that 58% of the females and 51% of the males answered window tinting. The sample sizes of males and females were not provided. Suppose that of 600 females, 348 reported window tinting as their preferred luxury upgrade of choice, while of 400 males, 204 reported window tinting as their preferred luxury upgrade of choice. Complete parts (a) through (d) below. a. Is there evidence of a difference between males and females in the proportion who said they prefer window tinting as a luxury upgrade at the 0.05 level of significance? State the null and alternative hypotheses, where π1 is the population proportion of females who said they prefer window tinting as a luxury upgrade and π2 is the population proportion of males who said…
Our professor wants us to calculate the test statistic and p-value by hand. The test statistic is correct. I can't get the p-value to save my life. Do you know what I am doing wrong?? (All of these p-value answers are incorrect: 0.25, .1230, 2.32, .0232, .02, and .01) An article published in the Washington Post claims that 45 percent of all Americans have brown eyes. A random sample of ?=78 college students found 30 who had brown eyes.Consider testing ?0:?=.45??:?≠.45 (a) The test statistic is ? = -1.16 (b) P-value =
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According to a survey conducted by the Association for Dressing and Sauces, 85% of American adults eat salad at least once a week. A nutritionist suspect that the percentage is higher that this. She conducts a survey of 200 American adults an finds that 171 of them eat salad at least once a week. Conduct the appropriate test that addresses the nutritionist's suspicions. Use the a = 0. 1 level of significance. What is the p-value? 0.85 0.855 0.1980 0.4215
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Suppose that according to your company, the average salary for middle managers was 105,000. You believe that the salary is actually less than $105,000. You conduct a test with significance level .05 and find a P-value of .073. d. Write a conclusion for the test based upon the given information.e. According to your test, is there evidence that salary for middle managers is less than $105,000? Explain your reasoning for full credit.
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