1. Make a statistical decision about the null. Will you reject or fail to reject the null based on your sample data? 2. Justify your decision regarding the null.3. Calculate the effect size for the comparison of those who estimated the line while alone vs. those who estimated in the length of line B when others told them it was 7 inches long (using Cohen's d). How large of an effect size is this (small, medium, or large)? Soloman Asch conducted a series of highly influential studies in the 1950's onconformity. In a typical study, subjects are shown a card with the figure below, and toldthat the length of line “X” is exactly 6 inches. It is known that in the population, themean estimated length of line "B" is µ = 6 inches, when individuals are asked toestimate the length of line "B" when they are alone.|||XABCTo study conformity, subjects in the experiment join a group with 4 otherindividuals, all of whom are confederates (i.e. they are actors who are part of theexperiment). The group is told that line "X" is exactly 6 inches. Each confederate isthen asked, one at a time, to estimate the length of line "B", and after each of themagrees that line “B” is 7 inches in length, the subject is asked to estimate the lengthof line "B". A sample of 10 subjects participate, and in this sample, the estimatedlength that each participant reports is shown in the table below. Complete all 4 stepsof hypothesis testing to decide if there is a significant difference in estimates of thelength of line "B" among people who are asked while they are alone, compared towhen they are in a group. Participant12345678910Estimated Length ofLine B (inches)5.58.2755.56.97.485.5M = 6.7(x-M) 21.44S1.692.250.092.891.440.040.491.691.44SS = 13.412 = 1.49s = 1.22

Given that sample size (n) = 10, sample mean, M = 6.7 and sample SD, s = 1.22

1. Make a statistical decision about the null. Will you reject or fail to reject the null based on your sample data? 2. Justify your decision regarding the null. 3. Calculate the effect size for the comparison of those who estimated the line while alone vs. those who estimated in the length of line B when others told them it was 7 inches long (using Cohen's d). How large of an effect size is this (small, medium, or large)?