A Researcher Has Computed Two Significant Pearson R Values from Independent

question 53

Short Answer

A researcher has computed two significant Pearson r values from independent random samples. Sample A, 171 subjects, produced an r of .75 and Sample B, 175 subjects, produced an r of .60. Do the two sample correlations represent a common population correlation?

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Definitions:

Double-Declining-Balance

A method of accelerated depreciation that doubles the rate at which an asset loses value compared to straight-line depreciation.

Units-Of-Output

A depreciation method that allocates the cost of an asset based on the number of units it produces.

Straight-Line

A method of calculating depreciation of an asset by evenly spreading the cost over its useful life.

Depreciable Cost

The total cost of an asset that is subject to depreciation, which includes the purchase price, import duties, transport costs, installation charges, and other expenses, less its salvage value.