# Question

For a population, N = 205,000, µ = 66, and σ = 7. Find the z value for each of the following for n = 49.

a. = 68.44

b. = 58.75

c. = 62.35

d. = 71.82

a. = 68.44

b. = 58.75

c. = 62.35

d. = 71.82

## Answer to relevant Questions

Let x be a continuous random variable that has a normal distribution with µ = 75 and σ = 14. Assuming n/N < .05, find the probability that the sample mean, , for a random sample of 20 taken from this population will be a. ...The GPAs of all students enrolled at a large university have an approximately normal distribution with a mean of 3.02 and a standard deviation of .29. Find the probability that the mean GPA of a random sample of 20 students ...The amounts of electricity bills for all households in a city have a skewed probability distribution with a mean of $140 and a standard deviation of $30. Find the probability that the mean amount of electric bills for a ...Consider a large population with p = .21. Assuming n/N < .05, find the mean and standard deviation of the sample proportion p̂ for a sample size of a. 400 b. 750 According to a poll, 55% of Americans do not know that GOP stands for Grand Old Party (Time, October 17, 2011). Assume that this percentage is true for the current population of Americans. Let p̂ be the proportion in a ...Post your question

0