A heteroscedasticity test determines the test statistic value, x 2 = 0.12, for 20 observations. a. Justify

Question:

A heteroscedasticity test determines the test statistic value, x² = 0.12, for 20 observations.
a. Justify when heteroscedasticity might occur.
b. Define the null hypothesis and alternative for the test. What can you conclude for it at the 5% significance level?

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