Question

Please answer all parts to the question (a-f). I will thumbs up!

In the summer of 2002, a group of students took an SRS of size 25 from a compiled list of the 220 top grossing films over the last 11 years. For each film in the sample, the number of products that were subtly planted in the picture per hour was recorded, as well as the films rating. From the rating, we can infer who the target audience is for each film we will assume that G, PG, and PG-13 films are all for children, and that R movies are strictly for adults. In this exercise, we will test the following theory: On average, filmmakers plant more product ads in childrens films than in adult films. Set a = 0.10. Below are the descriptive statistics. Assume all conditions are met. (a)Which test is appropriate? o Independent Samples T Test Paired T Test (b) What are the correct hypotheses? Ho: Pa = 0 versus Ha:c> where wd = difference in number of ads per hour calculated at number in a kids show minus number in a adult show Ho: Mkids - Hadult = 0 and HA: Mkids - Hadult > (e) What degrees of freedom should you use to analyze this data set? (d)What is the test statistic? Give your answer to 3 decimal places. (e) Estimate the p-value for the test? (Use 2 decimal places) (H) Which of the following is an appropriate conclusion? The data provides statistical evidence that the average number of ads per hour in kids movies is greater than the average number of ads per hour in adult movies The data provides statistical evidence that the average number of ads per hour in kids movies is 16.1 and the average number of ads per hour in adult movies is a between 8.7. The data does not provide statistical evidence that the average number of ads per hour in kids movies is greater than the average number of ads per hour in adult movies The data does not provide statistical evidence that the average number of ads per hour in kids movies is 16.1 and the average number of ads per hour in adult movies is a between 8.7. Two of these conclusions are equally good.

Answer 1

Date Page No te) Judependent Samples I- Test i appuopuiate 6) Ho: Mixids- Madults 20 Ho i Made-Madults 70 (c) defsn,the 2 Since cue assume all conditions are unet, ie I equal population namances e la 14+11-2₂ 23 d) Test-Statistics & Xkich - X adults fen,-)5'+ch, ts² ntha-2 Ez 16-14811-8-65196 (14-1) 9.54183'(1-1) 11/28909414 E t=181 Le) p-value: 0.04 since pualue cool, che legut Ho.

Date: Page No. f) Conclusions The data puowdes Statistical evidence that the a peu hown in kids mom es es gurateve Maw the ai avenage no ads adult mouces auenage ads car peu