Mann-Whitney U Test the Mean 'Data Analysis' Chapter

Total Length: 335 words ( 1 double-spaced pages)

Total Sources: 1



They hypothesis is rejected. The Chi-Square was significant X2 (1, 84) = 4.403, p < .05. The proportion of females alive at discharge was much greater than the proportion of males alive at discharge. This can be seen in the barchart below.

alive discharge * gender Crosstabulation

gender

Total

male female alive discharge no

Count

7

5

12

Expected Count 3.9

8.1

12.
0

yes

Count

20

52

72

Expected Count

23.1

48.9

72.0

Total

Count

27

57

84

Expected Count

27.0

57.0

84.0

4) Correlation & Regression

Variables: Hours in Operating Room & Number of Preop Risk Factors

Scatter Plot:

Hypothesis: The population correlation coefficient is equal to 0.

The hypothesis fails to be rejected. The correlation coefficient is not significant (p......

Have Any Questions? Our Expert Writers Can Answer!

Need Help Writing Your Essay?