A survey was conducted that asked 1019 people how many books they had read in th

Question

A survey was conducted that asked 1019 people how many books they had read in the past year. Results indicated that x = 14.7 books and s-16.6 books. Construct a 95% confidence interval for the mean number of books people read. Interpret the interval Click the icon to view the table of critical t-values. onstruct a 95% confidence interval or he mean number o books people read and interpret the e su (Use ascending order. Round to two decimal places as needed.) O A. If repeated samples are taken, 95% of them will have a sample mean betweenand 0 B. There is a 95% chance that the true mean number of books read is between and OC. There is 95% confidence that the population mean number of books read is between and Select e correct c o ce below an in the ans er boxes om ete urc o ce.

Explanation / Answer

mean = 14.7
sigma = 16.6
n = 1019

SE = 16.6/sqrt(1019) = 0.52
For 95% CI, z = 1.96

ME = 1.96 * 0.52 = 1.019

Lower bound = 14.7 - 1.019 = 13.681

Upper bound = 14.7 + 1.019 = 15.719

(C) There is 95% confidence that the population mean number of books read is between 13.681 and 15.719

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