Question

omework: 3-2 MyStatLab: Module Three Problem Set ore: 0 of 5 pts 12 ot 14 (9 complete) HW Score: 53 43%, 34.73 of 65 2.30-T Question Help survey was conducted that asked 005 people how many books they hadr ad in he past year. esu s nicated atx 14 Sbooks and s n books or struct a %00 fidence nter anor e mean nu ad Interpret the interval o struct a 95% confidence interval or the mean number o books people read and interpret the result Select the correct cho ce below and fil in the answer boxes to complete your choice. Ise ascending order. Round to two decimal places as needed) A. If repeated samples are taken, 95% of them will have a sample mean between | and | B. There is a 95% chance that the true mean number of books read is between 11 and 1 C. There is 95% confidence that the population mean number of books read is between and er at spe

Answer 1

At 95% confidence interval the critical value is z_0.025 = 1.96

The 95% confidence interval for population mean is

$\bar x$ +/- z_0.025 * s/$\sqrt n$

= 14.3 +/- 1.96 * 17.7/$\sqrt{1005}$

= 14.3 +/- 1.09

= 13.21, 15.39

Option - C) There is 95% confidence that the population mean number of books read is between 13.21 and 15.39.