1. Using the 2 table {Table E), find the critical value {or values] for each. a. a _ 0.05, two-tailed test 5:. a _ 0.01, lefttailed test c. a _ 0.005, righttailed test d. a _ 0.01, righttailed test 2. a _ 0.05, letailed test ,3? a _ 0-02, letailed test g. a _ 0.05, right-tailed test it a _ 0.01, twotailed test 3'. a _ 0-04, letailed test j. a _ 0-02, righttailed test 2. An increase in walking has been shown to contribute to a healthier lifestyle. A sedentary American takes an average of 5000 steps per day (and 65% of Americans are overweight). A group of healthconscious employees of a large health care system volunteered to wear pedometers for a month to record their steps. It was found that a random sample of 40 walkers took an average of 5430 steps per day, and the population standard deviation is 600 steps. At a _ 0.05 can it he concluded that they walked more than the mean number of 5000 steps per day'}I 3. Fulltime PhD. students receive an average salary of $1133? according to the U-S- Department of Education. The dean of graduate studies at a large state university feels that PhD. students in his state earn more than this. He surveys 44- randomly selected students and nds their average salary is $14,445, and the population standard deviation is $1500. With a _ 0.05, is the dean correct?II 7