Answer the following questions on the F test statistic. Complete parts (a) through (d) below. a. 1. If s represents the larger of two sample variances, can the F test statistic ever be less than 1? 2 $₂ O A. Yes, because the ratio will always be less than 1. S₁ O B. No, because the ratio will always be greater than 1. 2 $₁ O C. No, because the ratio will always be greater than 1. $2 2 1 O D. Yes, because the ratio will always be less than 1. Sa

Following are the fuel efficiency, in miles per gallon, for a sample of convertibles. Calculate the sample variance. 25, 26 , 21 , 20O, 21 Write only a number as your answer. Round to one decimal place (for example: 8.3).

3. Calculate the mean, median, mode, variance, and standard deviation for each of the following two groups of scores, which represent student performance on a health science test, with the highest possible score being 50. Group A 35 49 33 44 45 21 28 411 Group B 20 25 50 44 16 29 37 21 40 39 23 26 a. Which group has the greatest variability in scores? b. Which group has the highest mean score? c. How would you describe each group when comparing it to the other?

Answer question 5 Answer question 3d and 3e

A. For which data set is the sample correlation coefficient r closest to −1? B. For which data set is the sample correlation coefficient r closest to 0? C. For which data set is the sample correlation coefficient r equal to 1?