please solve all

When using an F-test, we use only the upper critical value since F is distributed symmetrically. Select one: O A. False. O B. More information is needed. O C. True. A test to verify that there is no difference between two populations means of dependent samples, based on a sample of 53 observations, resulted in a test statistic of 1.759 and a variance of the difference between sample means of 7.985. The difference between the two sample means is... Select one: O A. 0.68 O B. 4.53 O C. 1.93 O D. 0.26 When looking at an F table, assuming that Sx