A sociologist wishes to study the relationship between an individual’s age and his/her happiness. He interviews 24 individuals and collects data on his/her age and happiness score, measured on a scale from 0 to 100. A portion of the data is shown; the entire data set, labeled Happiness_Age, can be found on the text website.

Estimate Happiness = β0 + β1Age + .
a. What is the sample regression equation?
b. Predict the happiness score for a 45-year old person.
c. Interpret the coefficient of determination.
d. At the 1% significance level, does Age influence Happiness? Show the relevant steps of the hypothesistest.

  • CreatedJanuary 28, 2015
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