I the Basic Question in Testing the Significance of Rho

question 88

Multiple Choice

i. The basic question in testing the significance of rho is to see if there is zero correlation in the population from which the sample was selected. ii. A t test is used to test the significance of the coefficient of correlation.
iii. Suppose a sample of 15 homes recently sold in your area is obtained. The correlation between the area of the home, in square feet, and the selling price is 0.40. We want to test the hypothesis that the correlation in the population is zero versus the alternate that it is greater than zero. You determine that the rejection region should fall in the lower tail if this is a one-tailed test and we use a 0.01 significance level.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

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Mechanical devices used to inhibit motion by absorbing energy from a moving system, typically vital for the safe operation of vehicles.

Tires

Manufactured rubber products designed to cover wheels of vehicles to provide traction and absorb shock.

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An intermediate appellate court in Tennessee that reviews decisions from lower courts.

Lease

A contractual agreement where one party, the lessor, grants the other party, the lessee, the right to use an asset for a specified period in exchange for payment.