Homework Problem

Description: In the Spring of 2000, Junior PT students survey 175 individuals and obtained the following information.

Gender, age, whether or not they have a computer at home, average number of hours spent online per week.

Number of cases: 175

Variable Names:

1. 1.Sex: 1=male, 2=female
   

2. 2.Age: Age in years
   

3. 3.Computer: 1=has a computer at home, 2=no computer at home
   

4. 4.Online: average number of hours online per week
   

5. 5.Nighttime:  average number of hours online at night
   

6. 6.Daytime:  average number of hour online during the day
   
   

Download the SPSS file

QUESTIONS:

Conduct an independent t-test to answer the following question:  Do males average number of hours online differ significantly from women?  (p < .05)

1. 1.Write a null hypothesis.
   

2. 2.Write a two-way (nondirectional) research hypothesis.
   

3. 3.Report your results.  Guide to writing results.
   

4. 4.Report and interpret the 95% confident interval.
   
   

Video example of an independent t-test

Video example of a dependent t-test