question 5

Our friend the waffle man believes in science and has decided to move her waffle delivery service online. She has two versions of a waffle delivery website, version 1 and version 2, and wants to know which one is better. Luckily, our friend the waffle man is the original creator of the robot CEO of the social networking site Spacebook, Clark Muckerberg, and knows a thing or two about website design. To determine if one website version is better than another, she will compare the average number of clicks made by visitors to each version. She will conclude that no website is better than the other if the 95% confidence interval for the difference of the means contains zero. Assume she takes a random sample of 10 users on website 1, 10 users on website 2, and that these samples are independent. We can assume normality for the situation. The 10 sampled users on website 2 averaged 18.1 clicks with a sample standard deviation of 4.31, and the 10 users on website 1 averaged 22.0 clicks with a sample standard deviation of 5.37. Compute the confidence interval and check if it contains zero. Lower end point is |:| Upper end point is |:| manna Emma\