It is believed that the median yearly income in a suburb of Atlanta is $70,000. A sample of 67 residents was taken. Thirty-eight had yearly incomes above $70,000, 26 had yearly incomes below $70,000, and 3 had yearly incomes equal to $70,000. The null hypothesis to be tested is H₀: Median = $70,000. The mean and the standard deviation (respectively) for this test about the median are A) 32 and 4. B) 32 and 16. C) 33.5 and 4. D) 33.5 and 16.

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The Answer of It is believed that the median yearly income in a suburb of Atlanta is $70,000. A sample of 67 residents was taken. Thirty-eight had yearly incomes above $70,000, 26 had yearly incomes below $70,000, and 3 had yearly incomes equal to $70,000. The null hypothesis to be tested is H₀: Median = $70,000. The mean and the standard deviation (respectively) for this test about the median are A) 32 and 4. B) 32 and 16. C) 33.5 and 4. D) 33.5 and 16.

It Is Believed That the Median Yearly Income in a Suburb