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Toute la This question: 1 points) possible Submit test A local college newsletter reported that the average American college student spends one hour (60 minutes) on a social media website dally. But you wonder if there is a difference between males and femalon. Attached below is a sample of 60 users of the website (30 males and 30 femalon) and their recorded daily time spent on the website. Complete (a) and (b) below Click the icon to view the sample times. X Sample times a difference in the mean time spent on the website for female college students Daily time spent in minutes) on the website for 30 males 180 960 45 30 10 5 750 270 80 210 210 210 270 270 180 45 120 270 30 150 30 45 45 180 50 15 30 30 120 90 Daily time spent in minutes) on the website for 30 females 45 75 30 45 15 120 90 120 150 15 100 60 60 90210 50 60 60 270 120 30 30 50 180 90 20 120 30180105 Print Done Remaining: 02:30:40 Next

1. Assuming that the variances in the population of times spent on the website per day are equal, is there evidence of a difference in the mean time spent on the website per day between males and females? (Use a 0,05 level of significance.). Let , be the mean daily time spent on the website for male college students and Biz be the mean daily time spent on the website for female college students. Determine the hypotheses. Choose the correct answer below. OB. Ho: 142 O A HOH SH Hy ily 22 oc. HoH 22 HH2 O D. Ho: 1424 H₂:14 12 Determine the tost statistic STAT-(Round to two decimal places as needed.)

Find the p-value. p-value = (Round to three decimal places as needed.) Choose the correct conclusion below. O A. Reject Ho. There is insufficient evidence that the means differ. OB. Reject Ho. There is sufficient evidence that the means differ. OC. Do not reject Ho. There is sufficient evidence that the means differ. OD. Do not reject Ho. There is insufficient evidence that the means differ.

b. In addition to equal variances, what other assumption is necessary in (a)? A. In addition to equal variances, no other assumptions must be made because the sample sizes are large enough ( 30 for each sample) OB. In addition to equal variances, it must be assumed that the population sizes are equat C. In addition to equal variances, it must be assumed that the samples are specifically chosen and not independently sampled. OD. In addition to equal variances, it must be assumed that the sample means are equal