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17 October, 03:25

A hypothesis will be used to test that a population mean equals 10 against the alternative that the population mean is less than 10 with known variance. What is the critical value for the test statistic for the significance level of 0.025? Round your answer to two decimal places (e. g. 98.76).

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  1. 17 October, 03:43
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    Lets take the hypothesis

    zα/2

    - zα/2

    Step-by-step explanation:

    α/2 = 0.10/2 = 0.05

    z (0.05) = 3.92

    -z (0.05) = - 3.92
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