D
duval_bound
Guest
A microwave oven repairer says that the mean repair cost for a damaged microwave oven is less than $100.
you find that a random sample of five microwave ovens has a mean repair cost of $84 and a standard deviation of $11.50.
*alpha symbol*=0.05
critical value= -1.645
what is the standardized test statistic??
you find that a random sample of five microwave ovens has a mean repair cost of $84 and a standard deviation of $11.50.
*alpha symbol*=0.05
critical value= -1.645
what is the standardized test statistic??