11.32 Recreation and happiness The table shows data on indulgence in recreational activities and happiness for 398 individuals in a city.

a. The chi-squared test of independence has X2 = 168.78.
What conclusion would you make using a significance level of 0.05? Interpret.

b. Does this large chi-squared value imply there is a strong association between recreation and happiness?
Explain.

c. Find the difference in the proportion of being not too happy between those who seldom indulge into recreation and those who often indulge into recreation.
Interpret that difference.

d. Find and interpret the relative risk of being not too happy, comparing the lowest and highest recreation group. Interpret.

Transcribed Image Text:

Recreation Seldom Sometimes Often Happiness Not Too Happy Happy Very Happy 37 12 8 25 85 44 9 42 136