You wish to test the claim that μ



You wish to test the claim that μ<21 at="" a="" level="" of="" significance="" of="">


In a sample of size 49, you find the sample mean to be 2020.


Assuming the population standard deviation σ=2.57 and the values are normally distributed, compute the value of the test statistic and p-value.






  • The test statistic is −0.39-0.39 and the p-value is 0.34830.3483 .

  • The test statistic is 0.390.39 and the p-value is 0.65170.6517 .

  • The test statistic is −2.72-2.72 and the p-value is 0.99670.9967 .

  • The test statistic is −2.72-2.72 and the p-value is 0.00330.0033 .

  • The test statistic is 2.722.72 and the p-value is 0.99670.9967 .








Jun 11, 2022
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