According to a Bureau of Labor Statistics, a worker in the U. S. spends on average 528 minutes a day on the job. Suppose the standard deviation of the time spent on the job is 36 minutes. What is the probability that a sample of 81 workers have a mean time more than 533 minutes?

How do you write something in scientific notation?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

Which rule describes the composition of transformations that maps △abc to △a”b”c