1.

You wish to test the following claim (Ha) at a significance level of or = 0.002. H04; 2 62.8 Ham (4 62.8 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 72 with mean M = 60.4 and a standard deviation of SD = 12.6. What is the test statistic for this sample? {Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = You wish to test the following claim (Ha) at a significance level of or = 0.01. How : 64.7 Ham (4 64.7 You believe the population is normal.y distributed, but you do not know the standard deviation. You obtain the following sample of data: 68.6 56 63 83.7 72.1 64 61.7 69 53.2 67.8 61.7 65.3 70.7 77.7 60.1 36.6 78.6 89.2 66.7 57.6 46.6 42.6 67.1 53.6 57.9 60.8 51.3 61.7 59.5 50.1 58.6 49.2 44.8 89.2 78.6 59.5 50.1 60.8 70.7 45.5 44.1 57 50.5 41.7 63 72.1 73.7 54.3 50.9 72.1 71.6 65.6 53.6 73.7 89.2 What is the test statistic for this sample? [Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The n.u:|| Ia ie Test the claim that the mean GPA of night students is smaller than 2.3 at the 0.005 significance level. The null and alternative hypothesis would be: Ho:u 0.575 Ho:u = 2.3 Ho:p = 0.575 Hi :u > 2.3 H1:p > 0.575 Hi:p 0.35 You obtain a sample of size n = 676 in which there are 247 successes. What is the test statistic for this sample? {Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? {Report answer accurate to four decimal places.) p-value =