- Point S Possible New Arer Hev X Sample Times Con At The Ar Da Daily Time Spent In Minutes On The Website For 30 Mal 1 (24.75 KiB) Viewed 31 times
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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) Lely be the mean daily time spent on the website formule college students and my be the mean daily time spent on the website for female college students. Determine the hypotheses. Choose the correct answer below. O A HON9.52 OB. HoitHH2 Hp: H1 H2 oc. Ho: R 12 OD. Ho : Hy 212 H₂:14 H2 H:12 Determine the test 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. B. Reject Ho. There is sufficient evidence that the means differ. O C. 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)?
Won 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 ( 230 for each sample) B. In addition to equal variances, it must be assumed that the population sizes are equal 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
Let n = 100, X, = 20. n2 = 100, and X2 = 40. Complete parts (a) and (b) below. a. At the 0.10 level of significance, is there evidence of a significant difference between the two population proportions? Determine the null and alterative hypotheses. Choose the correct answer below, O A. Ho: R 22 H₂:39 <2 C. Ho: **72 H₂ By A2 OB. Ho: *45 Hp : 31 OD. Ho: * * *2 H₂ : 3 = 32 Calculate the test statistic, ZSTAT, based on the difference P.-P2 The test statistic, ZSTAT.is (Type an integer or a decimal. Round to two decimal places as needed.)
Calculate the tent statistic, 2star, based on the difference P P2 The test statute, 2STATI (Type an integer or a decimal Round to two decimplaces needed.) Calculate the p-value The p-value is (Type an integer or a decimal. Round to three decimal places as needed.) Determine a conclusion. Choose the correct answer below. the null hypothesis. There is evidence to support the claim that there is a significant difference between the two population proportions. b. Construct a 90% confidence interval estimate of the difference between the two population proportion Type intuigers or decimals. Round to four decimal places as needed.)