Mathematics, 06.07.2021 16:40 drma1084

Suppose you would like to estimate the average daily number of car crashes that occur at your hometown. With that in mind, you take a sample of 15 days where you record the number of car crashes at your hometown on each of those days. The data is 17, 12, 7, 17, 11, 11, 9, 8, 19, 13, 22, 12, 17, 12, 15, 9, 12, 20, 21, 15

a. Please calculate the sample average.
b. Please calculate the standard error of the sample average. (Please make sure to show your calculations.)
c. Please construct a 94% confidence interval for the population average. What kind of statement can you make with this confidence interval?

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