Question: The question posed was whether single people who own pets are generally happier than singles without pets. A group of non-pet owners is compared to pet owners using a mood inventory. The pet owners are matched one to one with the non-pet owners for income, number of close friendships, and general health. The data are as follows:

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MATCHED NON-PET PET

PAIR OWNER OWNER_______________________

A 10 15

B 9 9

C 11 10

D 11 19

E 5 17

F 9 15

Is there a significant difference in the mood scores for non pet owners versus pet owners?

Test with \(\alpha \) =.05 for two tails.