OUTPUT FOR #3 The SAS System The REG Procedure Model: MODEL 1 Dependent Variable

Question

OUTPUT FOR #3 The SAS System The REG Procedure Model: MODEL 1 Dependent Variable: volume Number of observations Road 21 Number of observations used 2 Analysis of Variance DF Squares Square F Value Pr F 5,79 00264 48692856 48692856 19 1596 76407 Corrected Total 20 2083 69263 9 16735 R-square 0.2337 Root MSE Dependent Mean 15.67531 Adj R-Sq 0 1934 Parameter Standard Variable DF Estimate Error tvalue Pr Intercept 1 11 30846 2 70058 4 19 0 0005 psa 1 006767 0.02811 241 0 0264 The REG Ft Diagnosties for volume 04 00 04

Explanation / Answer

Here we are testing that subject who do or who do nat participate in a sports have different mean syboli blood pressure.

This is our Ho.

First look at the table, Analysis of variance.

In that table the F-value is 0.0264 which is <0.05. This implies that it is statistically significant.

Now the R-square is 0.2337 means that approximately 23% of the variance is accounted by the model.

The t-test psa is equal to 0.0264 and it is statistically significant.

The coefficient of psa is 0.06767 meaning that one unit increase in psa 0.06 units increase in volume.

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