QuestionA study time survey is conducted of 39 UGA students and a mean x-bar 110 minutes is obtained. Test whether the UGA study times differ from the national average of 120 min ? Assume study times have a normal distribution with a known standard deviation of $\sigma=30$ minutes. Use the $5 \%$ significance level.
1 What is the correct interpretation of the hypothesis testing result at the $5 \%$ level of significance? 1) = The UGA study times were greater than the national average. 2) = The UGA study times are different from the national average. 3) = There was no difference between the UGA and national study times.
Note: Enter integer 1, 2, 3 No decimal. $A$