Question: The click-through rate for an advertisement on a web page is the percentage of visitors to that web page who click the link for the

The click-through rate for an advertisement on a web page is the percentage of visitors to that web page who click the link for the advertisement. Suppose you have sample data on the click-through rate for a website consisting of a random sample of visitors to that website. For each visitori, you observeC_iwhich equals 1 if they clicked on the advertisement and 0 if they did not. Defined this way,

C is the sample mean and represents the click-through rate for the sample. Suppose the sample size is 2,772, the sample mean is 0.16, and the sample standard deviation is 0.367.

Instructions:Enter your responses rounded to three decimal places.

a. Calculate a 90% confidence interval for the population mean, i.e., the click-through rate for the entire population of visitors to this website.

(,)

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