Adventure land amusement park has started receiving less customers, and they are

Question

Adventure land amusement park has started receiving less customers, and they are starting to get concerned as to what has happened. A corporate employee, John, has been asked to look into the matter. John gathered up all the contact info of everyone who went to the amusement park for the last three years. In order to determine differences in satisfaction, John created a questionnaire, which he sent to everyone who went to the amusement park within the last three years. He had them rate levels of happiness, relaxation, food/drink quality, and entertainment quality on scales of 1-10, with 10 being highest level. He gave anyone who completed the survey a 10.00 dollar Starbucks card. He got 3,000 responses, with 1,000responses from each of the last threeyears. John does not know how to statistically examine the data, so he asks you to consult him on how to examine the data. The key question that John needs answered is how to determine if satisfaction levels have changed over these last few years.

1. What would by a null hypothesis and alternative hypothesis?

2. Explain why directional or nondirectional

3. Provided specific statistical test to use, and justified answer

4. Explain why the statistical test is appropriate for type of data (e.g., ratio, interval, categorical, ordinal)

5.Provide critical values based on sample size

Explanation / Answer

1)

Null hypothesis(H0) : The satisfaction levels have not changed over these last few years.

Alternative hypothesis(H1) : The satisfaction levels have not changed over these last few years.

2) nondirectional, since Claim is only change over these last few years

3) z test for proportion of rate levels of happiness, relaxation, food/drink quality, and entertainment quality

4) since it is ordinal, since there is scale of 1 to 10 ratings

5) z critical value = 1.96 at 5% level(common rejection level)

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.