# Question: Review Exercise 10 41 Describe what happens to the sample size

Review Exercise 10.41. Describe what happens to the sample size when

a. The population standard deviation increases.

b. The confidence level increases.

c. The bound on the error of estimation increases.

a. The population standard deviation increases.

b. The confidence level increases.

c. The bound on the error of estimation increases.

## Answer to relevant Questions

Review the results of Exercise 10.43. Describe what happens to the sample size whena. The population standard deviation decreases.b. The confidence level decreases.c. The bound on the error of estimation decreases.a. Repeat part (b) of Exercise 10.48 after discovering that the population standard deviation is actually 100.b. Repeat part (b) of Exercise 10.48 after discovering that the population standard deviation is actually 400.a. A statistics practitioner randomly sampled 100 observations from a population with a standard deviation of 5 and found that x̄ is 10. Estimate the population mean with 90% confidence.b. Repeat part (a) with a sample size ...H0: µ = 50H1: µ > 50σ = 5, n = 9, x̄ = 51, α = .03Calculate the value of the test statistic, set up the rejection region, determine the p-value, interpret the result, and draw the sampling distribution.Determine β for the following test of hypothesis, given that µ = 48.H0: µ = 50H1: µ < 50α = .05, σ = 10, n = 40Post your question