A sociologist wanted to determine whether there was a difference in the amount o

Question

A sociologist wanted to determine whether there was a difference in the amount of time children
aged 5–7 spent watching television each day. Check the following data for evidence that the
number of minutes spent watching television is equally distributed throughout the week. The
data is shown graphically in Figure 11–1. Use a = 0.01
Table 11–1
Day Number of Minutes
Sunday 200
Monday 112
Tuesday 123
Wednesday 130
Thursday 160
Friday 225
Saturday 247

Find the expected value.
A) 171 B) 120 C) 112 D) 247

Explanation / Answer

the expected value = (200+112+123+130+160+225+247)/7 =171 Answer: A) 171

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