A)

You are conducting a study to see if the proportion of women over 40 who regularly have mammograms is significantly less than 0.22. You use a significance level of a = 0.005. Ho: p = 0.22 Hi:p 0.29 You obtain a sample of size n = 535 in which there are 176 successes. (a) What is the critical value for this test?(Report answer accurate to three decimal places.) CV = (b) What is the test statistic for this sample? (Report answer accurate to three decimal places.) TS =You are conducting a study to see if the proportion of voters who prefer Candidate A is significantly more than 0.22. You use a significance level of o = 0.001. Ho: p = 0.22 Hi :p > 0.22 You obtain a sample of size n = 328 in which there are 89 successes. (1) What is the critical value for this test? CV = (Report answer accurate to three decimal places.) (2) What is the test statistic for this sample? TS = (Report answer accurate to three decimal places.)You are conducting a study to see if the proportion of voters who prefer Candidate A is significantly different from 0.51. You use a significance level of o = 0.001. Ho:p = 0.51 Hi:p # 0.51 You obtain a sample of size n = 579 in which there are 305 successes. (1) What is the critical value for this test? CV = (Report answer accurate to three decimal places.) (2) What is the test statistic for this sample? TS = (Report answer accurate to three decimal places.)Test the claim that the mean GPA of night students is larger than 2.3 at the 0.10 significance level. The null and alternative hypothesis would be: Ho:u = 2.3 Ho:p = 0.575 Ho:p = 0.575 Ho:p = 0.575 Ho:/ = 2.3 Ho:/ = 2.3 Hi:u # 2.3 Hi:p 0.575 Hi:p / 0.575 H1:p > 2.3 H1:p