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. 5 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 Hy be the mean daily time spent on the website for male college students and Hy be the mean daily time spent on the website for female college students. Determine the hypotheses. Choose the correct answer below. O A. Ho: P1= H2 H: H+H2 O B. Ho H1 H2 H:H> H2 Х OC. Ho-H12M2 H:11 <H2 OD. Ho: 11 * 12 H: 11 =12 Sample times Determine the test statistic. ESTAT (Round to two decimal places as needed.) Daily time spent in minutes) on the website for 30 males 150 960 45 30 10 5 750 300 60 210 210 210 270 270 150 45 90 210 40 120 30 60 60 180 60 15 45 20 150 90 Daily time spent (in minutes) on the website for 30 females 45 60 20 45 30 120 90 150 180 15 120 60 60 100 180 60 60 60 240 120 30 30 60 150 90 15 120 20 150 100 Find the p-value p-value = (Round to three decimal places as needed.) Choose the correct conclusion below. Print Done O A. Reject Ho. There is insufficient evidence that the means differ. O B. Do not reject Ho. There is sufficient evidence that the means differ. OC. 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)? O A. In addition to equal variances, it must be assumed that the samples are specifically chosen and not independently sampled. O B. In addition to equal variances, it must be assumed that the sample means are equal. OC. In addition to equal variances, no other assumptions must be made because the sample sizes are large enough ( 230 for each sample) OD. In addition to equal variances, it must be assumed that the population sizes are equal.