09-Hyp_Tests_TwoTailTests_Zstat_Tstat.xlsx
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Z Test for the Mean
t Test for the Hypothesis of the Mean
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DataData
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Null Hypothesis m =
368Null Hypothesis m=120
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Level of Significance0.05Level of Significance0.05
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Population Standard Deviation
15Sample Size12
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Sample Size25Sample Mean112.85
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Sample Mean372.5Sample Standard Deviation20.8
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Intermediate CalculationsIntermediate Calculations
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Standard Error of the Mean3Standard Error of the Mean6.0044
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Z Test Statistic1.5Degrees of Freedom11
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t Test Statistic-1.1908
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Two-Tail Test
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Lower Critical Value-1.9600Two-Tail Test
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Upper Critical Value1.9600Lower Critical Value-2.2010
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p-Value#NAME?Upper Critical Value2.2010
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#NAME?p-Value#NAME?
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#NAME?
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Two-tail Test