Please help on 1,2,and 3

myopenmath.com Question 1 0/1 pt 5 10 99 @ Details You wish to test the following claim (H1) at a significance level of a = 0.05. Ho: u = 66.7 H1: 1 # 66.7 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 317 with a mean of a = 65.1 and a standard deviation of s = 17.9. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = Question Help: Video Submit Question Question 2 0/1 pt 9 10 99 @ Details You wish to test the following claim (H1) at a significance level of a = 0.005. Ho: M = 60.1 H1:u # 60.1 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 91 with a mean of x = 55.3 and a standard deviation of s = 16.4. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = Submit Question Question 3 C 0/1 pt 9 10 99 @ Details Suppose are running a study/poll about the probability of a true negative on a test for a certain cancer. You randomly sample 124 people and find that 60 of them match the condition you are testing. Suppose you are have the following null and alternative hypotheses for a test you are running: Ho : p = 0.5 H1 :p + 0.5 Calculate the test statistic, rounded to 3 decimal places 2 = Question Help: Video