A manufacturer conducted a survey among 400 randomly selected target market households in the test market for

Question:

A manufacturer conducted a survey among 400 randomly selected target market households in the test market for its new disposable diapers. The objective of the survey was to determine the market share for its new brand. If the sample point estimate for market share is 18%, develop a 95% confidence interval. Can the company reasonably conclude that they have a 22% market share?