Question: Explain the following tests for homoskedasticity. (a) Ramsey's test. (b) Goldfeld and Quandt's test. (c) Glejser's test. (d) Breusch and Pagan's test. Illustrate each of

Explain the following tests for homoskedasticity.

(a) Ramsey's test.

(b) Goldfeld and Quandt's test.

(c) Glejser's test.

(d) Breusch and Pagan's test. Illustrate each of these tests with the data in Tables 4.7 and 5.5.

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