DQ #1: Sampling
For your initial post, provide an example of when you might want to take a cluster random sample instead of a simple random sample, and explain what the advantages of a cluster sample might be. Also, explain how you would choose the cluster sample.
DQ #2: Evidence
Callaway is thinking about entering the golf ball market. The company will make a profit if its market share is more than 20%.
A market survey indicates that 140 of 624 golf ball purchasers will buy a Callaway golf ball.
In your initial post, answer the following questions:
Is this enough evidence to persuade Callaway to enter the golf ball market?
How would you make the decision if you were Callaway management? Would you use hypothesis testing?