1. For the following problem, state the most likely hypothesis and compute a Spearman correlation coefficient. Use an \(\alpha\) -Level of 0.05 (two-tailed). Perform the computations for the problem both by hand and using statistical software.

- Problem: An HMO administrator wants to examine the relationship of self-rated health to the number of physician visits made in 1 year. The self-rated health is rated on a scale of 1 to 5 , where 1= poor health and 5= excellent health; the number of physician visits made in the past year is shown in the table below:

1. State the null and alternative hypotheses.
2. Using \(\alpha=0.05\) (two-tailed) obtain the critical value for \(r\).
3. Check to make sure that the data meet all of the necessary assumptions (include scatter plot).
4. Perform the computations necessary to obtain a Spearman rank correlation coefficient.
5. Determine statistical significance and clearly state a conclusion.
6. Upload your statistical software results and provide a concise summary of the various output measures and conclusions of the test.

2. For the following problem, state the most likely hypothesis, complete the cross-tabulation table, compute the appropriate probabilities (i.e., marginal and conditional), and calculate the chi-square statistic by hand.

- Problem: A new type of steroid cream for the prevention of psoriasis flare-ups is being tested. The cross-tabulation table presents the relationship between the occurrence of flare-ups and use of the steroid cream. What is the relationship between the usage of the cream and the occurrence of flare-ups?

1. State the null and alternative hypotheses.
2. Using \(\alpha=0.05\) obtain the critical value for the chi-square statistic.
3. Create a cross-tabulation table, obtain the relevant probabilities, and obtain the unadjusted odds ratio.
4. Perform the computations necessary to obtain the chi-square statistic.
5. Determine statistical significance and clearly state a conclusion.

Price: $13.45

Solution: The downloadable solution consists of 7 pages, 645 words and 3 charts.
Deliverable: Word Document