Question 5 2 pts For the following problem, please round to two decimal places: In a study with three groups with equal numbers of participants, the variances within each of the groups were: 4.8, 1.3, and 8.2. What is the within-group estimate of the population variance?Question 6 2 pts A researcher was interested in how watching videos about a particular activity affects the desire to attend college among high school students.High school juniors planning to attend college were randomly assigned to view one of four videos emphasizing athletics, social life, scholarship, or artistic/cultural opportunities at a particular college. After viewing the videos, the participants took a test of their desire to attend this college with the following results (means and standard deviations are provided except for the last group): Athletics: M=66.75, s=6.55, N=5 Social Life: M=80.25, s=5.44, N=5 Scholarship: M=76.75, s=3.40, N=5 Art/Cultural: Raw Scores: 76, 71, 69, 65, 68 Use the .01 significance level and test the hypothesis that the type of activity emphasized in the video affected the participants' desire to attend the college. What is the proper cutoff(s)? O +5.95 O +4.94 O +3.24 O +4.94 O +5.29Question I" The withinvgroups estimate of variance is the estimate of the variance of the population of individuals based on the variation among the: (:1 Means of the groups studied D Mean of the groups minus the mean of the scores of the actual groups (:1 Equal to the batsmen-groups estimate of population 1lu-ariance (:1 Scores in each of the actual groups studied Question 8 2 pts An analysis of variance is different than a t-test because a t-test for independent means can compare the means of three or more groups and is more robust than an ANOVA. O True O False