Question

A recent study compared the time watching television by single- and dual-earner households. Based on a sample of 15 single-earner households, the mean amount of time watching television was 61 minutes per day, with a standard deviation of 15.5 minutes. Based on a sample of 12 dual-earner households, the mean number of minutes watching television was 48.4 minutes, with a standard deviation of 18.1 minutes.

What is the mean amount of time watching television for dual-earner households?
A - 48.4 minutes
B - 61 minutes
C - 15.5 minutes
D - 18.1 minutes

Answer 1

The mean amount of time watching television for dual-earner households is 48.4 minutes.

Step-by-step explanation:

To find the mean amount of time watching television for dual-earner households, we need to use the information provided about the sample mean and standard deviation for both single-earner and dual-earner households. The mean amount of time watching television for dual-earner households is given as 48.4 minutes. Therefore, the correct answer is option A - 48.4 minutes.