You wish to test the following claim (H1H1) at a significance level of α=0.005α=0.005. H0:μ=76.8H0:μ=76.8 H1:μ≠76.8H1:μ≠76.8 You believe the population is normally distributed, but you do not know the...


You wish to test the following claim (H1H1) at a significance level of α=0.005α=0.005.


      H0:μ=76.8H0:μ=76.8
      H1:μ≠76.8H1:μ≠76.8


You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=4n=4 with mean ¯x=63.3x¯=63.3 and a standard deviation of s=7.7s=7.7.


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 76.8.

  • There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 76.8.

  • The sample data support the claim that the population mean is not equal to 76.8.

  • There is not sufficient sample evidence to support the claim that the population mean is not equal to 76.8.




Jun 08, 2022
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