Carrying Out a Test for a Population Mean

AP Statistics· difficulty 2/5

A test fails to reject H0: mu = 50.

Software Output test statistic: t degrees of freedom: df p-value: p CI: (L, U)

The most appropriate conclusion is:

  • A

    mu is exactly 50.

  • B

    There is insufficient evidence to conclude mu differs from 50.

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  • C

    There is strong evidence mu = 50.

  • D

    The test must be repeated.

Explanation

Failing to reject H0 does not prove H0; it indicates lack of sufficient evidence against it.

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