Easy Eye, Inc. manufacturers adult sunglasses of all types. The company's management is not sure whether to target the next promotional campaign primarily toward men or women and has asked the research team to determine whether the market for sunglasses is split in half. A study is conducted at various cooperating stores selling sunglasses scattered throughout the market area. In a random sample of 300 adult purchasers of sunglasses, 141 were men.
What is the appropriate null hypothesis for Easy Eye, Inc. to test? Which one?
What is the value of the test statistic?
The solution provides a comprehensive answer to the question going into a lot of details.