# Question: Find the standard error to estimate the population mean for

Find the standard error to estimate the population mean for each of the following.

a. n = 17; 95% confidence level; s = 16

b. n = 25; 90% confidence level; s2 = 43

a. n = 17; 95% confidence level; s = 16

b. n = 25; 90% confidence level; s2 = 43

## Answer to relevant Questions

Calculate the margin of error to estimate the population mean for each of the following. a. 99% confidence level; x1 = 25; x2 = 30; x3 = 33; x4 = 21 b. 90% confidence level; x1 = 15; x2 = 17; x3 = 13; x4 = 11; x5 = 14 Calculate the width for each of the following. a. n = 6; s = 40; α = 0.05 b. n = 22; s2 = 400; α = 0.01 c. n = 25; s = 50; α = 0.10 A car-rental company is interested in the amount of time its vehicles are out of operation for repair work. State all assumptions and find a 90% confidence interval for the mean number of days in a year that all vehicles in ...Consider again the Mendez Mortgage Company case study in Chapter 2. From a random sample of n = 350 accounts of the company's total portfolio, estimate with 95% confidence the proportion of all the company's accounts in ...Consider the following random sample from a normal population: 12 16 8 10 9 a. Find the 90% confidence interval for population variance. b. Find the 95% confidence interval for the population variance.Post your question