Question

A researcher measures the relationship between sleep medication use (times used per week) and time spent...

  1. A researcher measures the relationship between sleep medication use (times used per week) and time spent working (in hours per week). Are they significantly correlated? Conduct a hypothesis test at the .05 significance level.

Sleep Medication Use

Time Spent Working

Deviation Scores

Sum of Squares

X

Y

X-Mx

Y-MY

(X-Mx) (Y-MY)

(X-Mx)2

(Y-MY)2

8

18

3

40

6

20

2

32

Mx=

MY =

SSXY=

SSX=

SSY=

Hypotheses:

Critical Value:

r =

Decision:

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