You wish to test the following claim (HaHa) at a significance level of α=0.002α=0.002.       Ho:μ=57.9Ho:μ=57.9 Ha:μ≠57.9Ha:μ≠57.9 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=40n=40 with mean ¯x=50.5x¯=50.5 and a standard deviation of s=13.3s=13.3.

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You wish to test the following claim (HaHa) at a significance level of α=0.002α=0.002.      

Ho:μ=57.9Ho:μ=57.9
Ha:μ≠57.9Ha:μ≠57.9

You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=40n=40 with mean ¯x=50.5x¯=50.5 and a standard deviation of s=13.3s=13.3.

  1. What is the test statistic for this sample?

    test statistic = Round to 3 decimal places

  2. What is the p-value for this sample?

    p-value = Use Technology Round to 4 decimal places.

  3. The p-value is...
    • less than (or equal to) αα
    • greater than αα


  4. This test statistic leads to a decision to...
    • reject the null
    • accept the null
    • fail to reject the null


  5. 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 57.9.
    • There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 57.9.
    • The sample data support the claim that the population mean is not equal to 57.9.
    • There is not sufficient sample evidence to support the claim that the population mean is not equal to 57.9.
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