Question

III. Read the following. Are they paired-samples or independent samples? A. We randomly select 30 males...

III. Read the following. Are they paired-samples or independent samples?

A. We randomly select 30 males and 30 females and compare the average time they each spend playing video games.

B. We randomly select 30 couples and compare the time each couple spends watching TV and playing video games.

Math   Statistics-And-Probability   
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Answer #1

A. We randomly select 30 males and 30 females and compare the average time they each spend playing video games.

Independent samples

The time spent by a male playing video game will be independent of the time spent by females playing video games. Both are independent.

B. We randomly select 30 couples and compare the time each couple spends watching TV and playing video games.

Paired Samples

The time is recorded for the same couples watching TV and playing video games. Since the same couple is used, therefore we have dependent or paired samples

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