1. Suppose the amount of money UCLA students spend on movies
during a one month period observes normal distribution. A sample is
taken containing monthly movie spending in dollars for several UCLA
students as 66.72, 50.23, 40.57, 45.53, 60.45, 70.85, 57.49, and
53.46. Round your numbers to two decimal places. All the
calculation should be preceded with the formula used.
a. Calculate the sample mean, sample standard deviation, and
standard error.
b. Estimate the average monthly movie...