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More Hypothesis Testing
The three sample moments are the variances of age and vocabulary and their
covariance. The two distinct parameters to be estimated are the two population
variances. The covariance is fixed at 0 in the model, not estimated from the sample
information.
Viewing Graphics Output
E Click the Show the output path diagram button.
E In the Parameter Formats pane to the left of the drawing area, click Unstandardized
estimates.
The following is the path diagram output of the unstandardized estimates, along with
the test of the null hypothesis that age and vocabulary are uncorrelated:
The probability of accidentally getting a departure this large from the null hypothesis
is 0.555. The null hypothesis would not be rejected at any conventional significance
level.