Assume the average price for a movie is $11.42. Assume the population standard deviation is 80.42 and that a sample of 32 theaters was randomly selected. Complete parts a through d below. 2:. Calculate the standard error of the mean. 6)} = 8 0.0?42 (Round to four decimal places as needed.) b. What is the probability that the sample mean will be less than $11.55? P(i$11.50) = (Round to four decimal places as needed.)