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Level of Significance for Mean Voltage and Reading

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3.4 A home has a solar electric system. The owner collected voltage readings from a meter connected to the electric system. Use analysis of variance at the 0.05 level of significance to test the claim that the mean voltage reading was the same for each of the different types of day.
sunny days
cloudy days
rainy days

13.5
12.7
12.1

13.0
12.5
12.2

13.2
12.6
12.3

13.9
12.7
11.9

13.8
13.0
11.6

14.0
13.0
12.2

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Solution Summary

The solution examines the level of significance for mean voltage reading is the same for each of the different types of days.

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Null hypothesis:

H0: There is no difference between the mean voltages for each of the different types of day
Alternative hypothesis:

H1: There is difference between the different the mean voltages for each of the different types of ...

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