What is the relationship (if any) between the number of hours one sleeps and his/her satisfaction with life? We can examine this question using data from the MIDUS2 data set.

SPSS

1. Go to Analyze > Correlate > Bivariate
   
   1. Drag the variables B4S4 (hours of sleep) and B4QSW_SL (satisfaction with life scale) over to the “variable” field
   2. Under the Correlation Coefficients heading, check the Pearson box
   3. Hit OK
2. Interpret the results. What do we learn from the Pearson correlation coefficient (r) about the linear relationship between hours of sleep and life satisfaction?

Online Analysis

1. At the top banner, select Analysis > Correlation Matrix
   
   1. Type the variables B4S4 (hours of sleep) and B4QSW_SL (satisfaction with life scale) into the boxes under “Variables to Correlate”
   2. Check to be sure that the box beside “Main statistic to display” says “Pearson correlation”
   3. Hit Run Correlation.

Interpret the results. What do we learn from the Pearson correlation coefficient (r) about the linear relationship between hours of sleep and life satisfaction?