Question

A random sample of 378 hotel guests was taken one year ago, and it was found that 178 requested Non-smoking rooms. Recently, a random sample of 516 hotel guests showed that 320 requested non-smoking rooms.

Do these data indicate that the proportion of hotel guests requesting nonsmoking rooms has increased? State HO and H1 and test using a 0.1% level of significance. Find the proportions( including the pooled) then Z. Include a sketch, state the p-value followed by your conclusion.

Answer 1

That is , there is insufficient evidence to conclude that the proportion of hotel guests requesting nonsmoking rooms has increased.