WLDwork / stat122 Homework11: Problem 10 Previous Problem List Next (1 point) A

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WLDwork / stat122 Homework11: Problem 10 Previous Problem List Next (1 point) A survey of 1700 people who took trips revealed that 139 of them included a visit to a theme park. Based on those survery resuits, a management consultant claims that less than 9 % of trips include a theme park visit. Test this claim using the =005 significance level The test statistic is The critical value is The conclusion is A. There is sufficient evidence to support the claim that less than 9 % of trips include a theme park visit B. There is not sufficient evidence to support the claim that less than 9 % of trips include a theme park visit ote: You can earn partial credit on this probiem. Preview My AnswersSubmit Answers ou have attempted this problem 0 times ou have 3 attempts remaining

Explanation / Answer

from above null hypothesis:Ho p=0.09

alternative hypothesis:Ha:p<0.09

std error =(p(!-p)/n)1/2 =0.0069

sample proportion phat =139/1700=0.0818

hence test statistic z =(phat-p)/std error =(0.0818-0.09)/0.0069 =-1.1865

crtiical value = -1.6449

option B is correct

please revert for any clarification required.

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