Question

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Answer #1

a) H0: μ = 91,500 Ha: μ ≠ 91,500

b)

population mean μ= | 91500 |

sample mean 'x̄= | 85272.000 |

sample size n= | 25.00 |

sample std deviation s= | 11039.230 |

std error 'sx=s/√n= | 2207.846 |

test stat t ='(x-μ)*√n/sx= |
-2.821 |

p value = |
0.0095 |

. Reject H0. We can conclude that the mean annual administrator salary in Ohio differs significantly from the national mean annual salary.

d)

H0: μ = 91,500 Ha: μ ≠ 91,500

test stat t ='(x-μ)*√n/sx= |
-2.821 |

critical values for the rejection rule"

test statistic ≤-2.064

test statistic ≥2.064

Reject H0. We can conclude that the mean annual administrator salary in Ohio differs significantly from the national mean annual salary

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