Question: A researcher from a national reading program conducted a poll of 1100 American adults over the age of 30-years-old and asked how many books they

A researcher from a national reading program conducted a poll of 1100 American adults over the age of 30-years-old and asked how many books they read over the past year. The researcher reported that American adults over the age of 30-years-old read a mean number of 13.1 books. The report included a margin of error of 1.23 books. (Assume 95% confidence was used.) Step 1 of 3 : Calculate the lower and upper endpoints of the confidence interval. Do not round answers

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