Explain why these data are paired. b. the mean of the differences was .83 (indicating girls intended, on average, to take fewer classes than they thought boys should take), and the standard deviation was 1.51. construct and interpret a 95% confidence interval for the mean difference.

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?

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

5x−4≥12 or 12x+5≤−4 can you with this problem