Question

You wish to test the following claim (HaHa) at a significance
level of α=0.001α=0.001.

Ho:μ=82.7Ho:μ=82.7

Ha:μ≠82.7Ha:μ≠82.7

You believe the population is normally distributed, but you do not
know the standard deviation. You obtain the following sample of
data:

data |
---|

64.6 |

58.1 |

60.1 |

58.1 |

78.6 |

71.2 |

60.6 |

86.9 |

75.2 |

88.3 |

77.1 |

What is the critical value for this test? (Report answer accurate
to three decimal places.)

critical value = ±±

What is the test statistic for this sample? (Report answer accurate
to three decimal places.)

test statistic =

The test statistic is...

- in the critical region
- not in the critical region

This test statistic leads to a decision to...

- reject the null
- accept the null
- fail to reject the null

As such, the final conclusion is that...

- There is sufficient evidence to warrant rejection of the claim that the population mean is not equal to 82.7.
- There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 82.7.
- The sample data support the claim that the population mean is not equal to 82.7.
- There is not sufficient sample evidence to support the claim that the population mean is not equal to 82.7.

Answer #2

The statistical software output for this problem is :

critical value = ± 4.587

test statistic = -3.509

The test statistic is not in the critical region .

fail to reject the null

There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 82.7.

answered by: anonymous

You wish to test the following claim (HaHa) at a significance
level of α=0.001α=0.001.
Ho:μ=67.9Ho:μ=67.9
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You believe the population is normally distributed and you know the
standard deviation is σ=10.2σ=10.2. You obtain a sample mean of
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What is the critical value for this test? (Report answer accurate
to three decimal places.)
critical value =
What is the test statistic for this sample? (Report answer accurate
to three decimal places.)
test statistic =...

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level of α=0.001α=0.001.
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What is the critical value for this test? (Report answer accurate
to three decimal places.)
critical value =
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test statistic = (Report answer accurate to 3 decimal
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data
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43
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57.2
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to three decimal places.)
test statistic =
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level of α=0.001α=0.001.
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What is the critical value for this test? (Report answer accurate
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to three decimal places.)
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