This test does not allow backtracking. Changes to the answer after submission are prohibited. Question Completion Status: Moving to the next question prevents changes to this answer. Question 1 of stion 1 12.5 points Save Ans A researcher wishes to test whether the mean of a normally distributed population is greater than 1.06 at the 5% significance level. Based upon 22 Independent observations, she observes a sample mean of 1.77 and a sample standard deviation of 0.84. Determine the degrees of freedom of the null distribution of Student's t test. Moving to the next question prevents changes to this answer. Question 1 of 8 MacBook Pro $ &