The principal at a middle school gave a survey to randomly selected students, asking which activity of the after-school program they were attending. A bar graph matching students with activities
1.
Choose the best answers.

If the middle school had 2,000 students, how many students out of the total student population would she have expected to participate in each of the following activities?

Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below. correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance. what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?