# Question

Consider H0: µ = 45 versus H1: µ < 45.

a. A random sample of 25 observations produced a sample mean of 41.8. Using α = .025, would you reject the null hypothesis? The population is known to be normally distributed with σ = 6.

b. Another random sample of 25 observations taken from the same population produced a sample mean of 43.8. Using α = .025, would you reject the null hypothesis? The population is known to be normally distributed with σ = 6.

a. A random sample of 25 observations produced a sample mean of 41.8. Using α = .025, would you reject the null hypothesis? The population is known to be normally distributed with σ = 6.

b. Another random sample of 25 observations taken from the same population produced a sample mean of 43.8. Using α = .025, would you reject the null hypothesis? The population is known to be normally distributed with σ = 6.

## Answer to relevant Questions

Make the following tests of hypotheses. a. H0: µ = 25, H1: µ ≠ 25, n = 81, = 28.5, σ = 3, α = .01 b. H0: µ = 12, H1: µ ≠ 12, n = 45, = 11.25, σ = 4.5, α = .05 c. H0: µ = 40, H1: µ ≠ 40, n = 100, = 47, ...According to the U.S. Bureau of Labor Statistics, all workers in America who had a bachelor’s degree and were employed earned an average of $1038 a week in 2010. A recent sample of 400 American workers who have a ...Records in a three-county area show that in the last few years, Girl Scouts sold an average of 47.93 boxes of cookies per year per girl scout, with a population standard deviation of 8.45 boxes per year. Fifty randomly ...A random sample of 14 observations taken from a population that is normally distributed produced a sample mean of 212.37 and a standard deviation of 16.35. Find the critical and observed values of t and the ranges for the ...According to an estimate, the average age at first marriage for women in the United States was 26.1 years in 2010 (Time, March 21, 2011). A recent sample of 60 women from New Jersey who got married for the first time this ...Post your question

0