- #1

scot72001

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155 hospital patients completed a questionnaire about their hospital stay. We examine the variables

Satisfaction and Stay (length of stay). Stay is measured in days and takes values 1,2,3,4,5,6,7, while

Satisfaction is compiled from the completed questionnaire.

(a) A partial analysis of variance table for the means model is given below.

Analysis of Variance on Stay

Source DF SS MS F p

Stay * 25.23 * * *

Error * * * * *

Total * 364.51

Fill in the entries marked `*'. State the hypothesis being tested and give your conclusions.

What is R2? What is the estimate of ?

(b) A partial analysis of variance table for the regression of Satisfaction on Stay is given below.

Analysis of Variance

SOURCE DF SS MS F p

Regression * * * * *

Error * 345.57 *

Total * *

Fill in the entries marked `*'. State the hypothesis being tested and give your conclusions.

(c) Perform the lack-of-t F-test. What is the null hypothesis? Do you reject the null hypothesis?