An annual championship event is the most widely watched sporting event in a country each year. In recent?years, there has been a great deal of interest in the ads that appear during the game. These ads vary in length with most lasting 30 seconds or 60 seconds. The accompanying data represent the ad length and ad scores from a recent championship. Complete parts?(a) through?(c).
An annual championship event is the most widely watched sporting event in a country each year. In recent years, there has been a great deal of interest in the ads that appear during the game. These ads vary in length with mos ad length and ad scores from a recent championship. Complete parts (a) through (c). 30-Second Ads 60-Second Ads 50 24 31 40 42 62 55 58 53 59 42 25 39 50 55 25 34 32 49 65 Find the critical value(s). (Use a comma to separate answers as needed. Round to two decimal places as needed.) Choose the correct conclusion below. Ho There is evidence that the mean scores differ. b. Determine the p-value in (a) and interpret its meaning. p-value - (Round to three decimal places as needed.) Interpret the p-value. Choose the correct answer below. The p-value is the probability of obtaining a sample that yields a t test statistic than the computed test statistic if there is no difference in the mean score between the 30-second ads and the 60-second ads. C. Assuming that the population variances from both types of ads are equal, construct and interpret a 95% confidence interval estimate of the difference between the population mean score of the two types of ads. The confidence interval is |Spy - H2 = (Type an integer or decimal rounded to two decimal places as needed.) Interpret the confidence interval. Choose the correct answer below. O A. One can say with 5% confidence that the difference between the population mean score of the 30-second ads and the 60-second ads is smaller than the lower bound. O B. One can say with 5% confidence that the difference between the population mean score of the 30-second ads and the 60-second ads is larger than the upper bound. C. One can say with 95% confidence that the difference between the population mean score of the 30-second ads and the 60-second ads falls in this interval. O D. One can say with 95% confidence that the difference between the population mean score of the 30-second ads and the 60-second ads falls outside this interval Click to select your answer(s) Type here to search e WE pAn annual championship event is the most widely watched sporting event in a country each year. In recent years, there has been a great deal of interest in the ads that appear during the game. These ads vary in length with ad length and ad scores from a recent championship. Complete parts (a) through (c). 30-Second Ads 60-Second Ads 2 50 24 31 40 42 62 55 58 53 59 42 25 39 50 55 25 34 32 49 65 a. Assuming that the population variances from the 30-second ads and the 60-second ads are equal, is there evidence of a difference in the mean score between the two types of ads? Use a = 0.05. Let u, be the mean score for the 30-second ads and u2 be the mean score for the 60-second ads. Determine the hypotheses. Choose the correct answer below. O A. Ho- H1 512 OB. HO H1 # H2 Hy: H1 > H2 H 1- H1 = H2 O C. HO H1 2 H2 OD. HO H1 = H2 Hy: H1
