1. Aidan drops a ball vertically from a height of 120 feet. The peak height after each bounce is half the previous height. How far does the ball travel from the time he drops it until it reaches the peak height after the 4th bounce? Please explain exactly how you came up with your answer! (3 points)

2. Find the sum of the series ∑12i=1(3i-1)

3. The number of visitors to a website in the first week is 40. The number of visitors each week is double the number of visitors the previous week. What is the total number of visitors to the website in the first 10 weeks? Show all your work!!! (4 points)

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?