STA 205 Study Guide - Final Guide: Confidence Interval, Netflix, Standard Deviation
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Write your answers to the following questions on a separate sheet of paper to be turned into your lab instructor. Sta 205, fall 2018: apple recently released a new version of the ipad. Before releasing it, engineers were interested in estimating the mean battery life. To do so, a random sample of 32 ipads is selected, and each are used under typical conditions. The battery life (in hours) for each ipad is then recorded. Select the interval confidence interval or an interval based on the empirical rule that would be most appropriate for estimating this quantity. Output: a recent time magazine article investigated the netflix viewing habits of us adults. Of interest was the mean number of minutes per day subscribers used the streaming service. To estimate the quantity, a sample of 125 subscribers was taken and their viewing times (in minutes) were recorded.
