IQ scores are normally distributed with a mean of 100 and a standard deviation of 16. a) What percent of people have an IQ of less than 68?
b) What percent of people have an IQ between 100 and 132?
c) Write a 68% confidence interval.
d) If 10,000 people are studied, how many will score above a 148 on the IQ?

Joe owns a fast-food restaurant and wants to know the average time it takes for customers to receive their orders. his restaurant serves about 500 customers a day. he timed 5 orders, and the order times he collected, given in minutes, are shown below. can the approximate order fulfillment time for all of the restaurant's customers be calculated from the given data? if so, calculate it. non-integer answers should be rounded to the nearest tenth. if no assumption can be made, type "0" in the box. the approximate order fulfillment time for all of the restaurant's customers is minutes.