I wondered whether a fish or cat made a better pet. I found some people who had either fish or cats as pets and measured their life satisfaction and how much they like animals. Enter these data into SPSS and save as pets.sav.

Fish Cat Animal Liking Life Satisfaction Animal Liking Life Satisfaction 69 47 16 52 25 6 65 66 31 47 39 65 29 33 35 61 12 13 19 60 49 56 53 68 25 42 27 37 35 51 44 72 51 42 40 46 23 27 37 48