Answer Happy

A local college newsletter reported that the average American college student spends one hour (60 minutes) on a social media website daily. But you wonder if there is a difference between males and females. Attached below is a sample of 60 users of the website (30 males and 30 females) and their recorded daily time spent on the website. Complete (a) and (b) below. Click the icon to view the sample times. a. 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 y be the mean daily time spent on the website for male college students and H2 be the mean daily time spent on the website for female college students. Determine the hypotheses. Choose the correct answer below. O A. Ho-M1 SP2 H:H1 H2 OB. Ho H1 242 HH1 H2 OC. Ho: H1 = H2 H:H *12 OD. Ho H1 H2 HH1 =12 Determine the test statistic. ESTAT (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 sufficient evidence that the means differ. OB. Do not reject Ho. There is insufficient evidence that the means differ. O C. Reject Ho. There is insufficient evidence that the means differ.

Choose the correct conclusion below. O A. Reject Ho. There is sufficient evidence that the means differ. B. Do not reject Ho. There is insufficient evidence that the means differ. C. Reject Ho. There is insufficient evidence that the means differ. O D. Do not reject Ho. There is sufficient evidence that the means differ. b. In addition to equal variances, what other assumption is necessary in (a)? A. In addition to equal variances, it must be assumed that the population sizes are equal. B. In addition to equal variances, it must be assumed that the samples are specifically chosen and not independently sampled. C. In addition to equal variances, no other assumptions must be made because the sample sizes are large enough (230 for each sample). D. In addition to equal variances, it must be assumed that the sample means are equal.

- Х Sample times 150 150 150 15 270 20 270 120 210 90 60 30 Daily time spent (in minutes) on the website for 30 males 180 930 45 30 10 5 720 300 60 45 90 240 40 150 30 45 45 150 Daily time spent (in minutes) on the website for 30 females 30 60 15 30 30 150 60 150 180 60 60 60 240 120 30 30 90 180 15 60 90 10 60 120 60 20 120 150 180 30 Print Done