Author Question: Sales of a new line of athletic footwear are crucial to the success of a company. The company wishes ... (Read 67 times)

jake · **on:** Jul 24, 2018

Sales of a new line of athletic footwear are crucial to the success of a company. The company wishes to estimate the average weekly sales of the new footwear to within 200 with 95 reliability.

The initial sales indicate that the standard deviation of the weekly sales figures is approximately 1400. How many weeks of data must be sampled for the company to get the information it desires?
A) 97 weeks B) 189 weeks C) 37,648 weeks D) 14 weeks

Question 2

Describe how to use a prospective study to determine if the home teams have an unfair advantage when shooting free-throws.

What will be an ideal response?

mcinincha279 · **Reply #1 on:** Jul 24, 2018

Answer to Question 1

B

Answer to Question 2

A prospective study is an observational study in which teams are selected and then their future free-throws are recorded to see if they improve when they have the altered basketballs. The differences in the number or percentage of free-throws made would be compared between the two types of basketballs.