...Thanks and stay bless y'al? 1.A group of 49 randomly selected students has a mean age of 22.4 years with a population standard deviation of 3.8. Construct a 98% confidence interval for the population mean.
2.True or False: As the level of confidence increases the number of item to be included in a sample will decrease when the error and the standard deviation are held constant.
3.Let t0 be a specific value of t. Find t0 such that the following statement is true:
P(t ≥ t0) = .1 where df = 20
2.True or False: As the level of confidence increases the number of item to be included in a sample will decrease when the error and the standard deviation are held constant.
3.Let t0 be a specific value of t. Find t0 such that the following statement is true:
P(t ≥ t0) = .1 where df = 20