You wish to test the following claim (HaHa) at a significance level of α=0.002α=0.002. Ho:μ=87.8Ho:μ=87.8 Ha:μ≠87.8Ha:μ≠87.8 You believe the population is normally distributed and you know the...


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


      Ho:μ=87.8Ho:μ=87.8
      Ha:μ≠87.8Ha:μ≠87.8


You believe the population is normally distributed and you know the standard deviation is σ=15.6σ=15.6. You obtain a sample mean of M=83.9M=83.9 for a sample of size n=27n=27.


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


What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =


The p-value is...




  • less than (or equal to) αα

  • greater than αα







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 87.8.

  • There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 87.8.

  • The sample data support the claim that the population mean is not equal to 87.8.

  • There is not sufficient sample evidence to support the claim that the population mean is not equal to 87.8.




Jun 07, 2022
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