13. On a trip of 525 miles, how many minutes faster is it to travel at 60 miles per hour than 50 miles per hour?
A 95 minutes
B 85 minutes
C 75 minutes
D 105 minutes

Arandom sample of size n 64 is taken from a population with population proportion p 0.38 describe the sampling distribution of p. draw a graph of this probability distribution with its a. mean and standard deviation. b. what is the probability that the sample proportion is greater than 0.5? what is the probability that the sample proportion is less than 0.3? d. what is the probability that the sample proportion is between 0.35 and 0.45?