Biostat: Paired Sample t-test (SPSS)

Homework 5

PUBH 6000

Due 11/4/2017

1. Determine if there is a significant difference between the genders on average student height and report the 95% confidence interval.

2. Determine if there is a significant difference between the number of hours students study and the number of hours students work and report the 95% confidence interval.

3. Determine if there is a significant difference between males and females in regard to the average number of hours they watch TV and report the 95% confidence interval.

4. The average faculty salaries data file includes the average salaries for males ($1000/year) and for females ($1000/year) from assistant professors from the same university (i.e., these are dependent samples). Determine if there is a difference in the average faculty salaries between males and females and report the 95% confidence interval.

5. The ozone column thickness data file includes the thickness for January and February for 15 different years (i.e., these are dependent samples). Determine if three is a difference in the ozone column thickness between January and February and report the 95% confidence interval.

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