Carrying Out a Test for the Slope of a Regression Model

AP Statistics· difficulty 3/5

A regression with df = 28 yields t = 2.05 for the slope.

t-distribution, df=28 -2.05 2.05

For the two-sided test of slope, p-value is approximately?

  • A

    0.005

  • B

    0.10

  • C

    0.05

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  • D

    0.025

Explanation

With df = 28, t = 2.05 corresponds to a two-sided p-value of approximately 0.05 (just slightly below).

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