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.
a
You might also like to view...
Attendance time records show the time periods that employees are in attendance at the job site and available for work
Indicate whether the statement is true or false
In a unilateral contract, the offer is accepted when the:
A. offeree attempts to perform the act. B. offeror puts across his promise in writing. C. offeror verbalizes his assent. D. offeree performs the requested act.
Sometimes mass marketing is used in favor of segment marketing is because:
a. Costs per individual are higher but more people are reached b. Costs per individual are lower and neglected market segments are reached c. market niches are reached more easily d. Risks are higher, but the payoff is also higher e. Mass customization doesn't work for nonprofits
A bill of sale is proof of ownership
Indicate whether the statement is true or false