a. 0 b. 2 c. 4 d. 6 36. What is the sum of the positive ranks? a. 36 b. 15 c. 24

Question

a. 0 b. 2 c. 4 d. 6

36. What is the sum of the positive ranks?

a. 36 b. 15 c. 24 d. 21

37. What is the sum of the absolute value of negative ranks?

a. 36 b. 15 c. 24 d. 21

38. What is the test statistic?

a. 36 b. 15 c. 24 d. 21

39. True or False: There is no significant difference in glycosolated hemoglobin in patients 3 months after taking insulin by nasal spray.

here on the bookmarks bar. An experiment was conducted to study responses to different methods of taking insulin in patients with type l diabetes. The percentages of glycosolated hemoglobin initially and 3 months after taking insulin by nasal spray are given in the table below. 3 Months After Patient Number Before 7.7 6.6 10.4 7.6 8.8 8.6 9.5 6.9 Conduct a two-sided Wilcoxon Sign Rank Test with alpha 5% to determine if there is a significant difference in glycosolated hemoglobin after taking insulin by nasal spray. Note: Conduct your subtraction by Before 3 Months After. 34. What is the critical value? a. 0 b. 2 35. What is the sum of the positive ranks (i.e. W+? a. 36 b, 15 r 24 2 12:13

Explanation / Answer

Wilcoxon Signed Rank Test: Difference

Test of median = 0.000000 versus median 0.000000

               N for   Wilcoxon         Estimated
            N   Test Statistic      P     Median
Difference 8      8       15.0 0.726    -0.4250

As the p-value is greater than 0.05 , it can be concluded that there is a no significant difference in glycosolated hemoglobin in patients 3 months after taking insulin by nasal spray.

Before 3 Month After Difference Rank 7.6 8.8 -1.2 -1 9.5 10.4 -0.9 -2 6.9 7.7 -0.8 -3 5.9 6.6 -0.7 -4 8.6 9 -0.4 -5 7.7 7.9 -0.2 -6 11 9.5 1.5 7 12 10.2 1.8 8 sum of positive rank -21 sum of negative rank 15

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