SOLUTION: Use technology and a t-test to test the claim about the population mean at the given level of significance using the given sample statistics. Assume the population is normally
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Question 1179220: Use technology and a t-test to test the claim about the population mean at the given level of significance using the given sample statistics. Assume the population is normally distributed.
Claim: u>78;a=0.05 Sample statistics:x̄ =80.7, s=3.3, n=28
What is the value of the standardized test statistic? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! the test statistic is t=(x bar-mu)/s/sqrt(n). It will have df=27, but the value is unknown in absence of alpha.
that is t=2.7*sqrt(28)/3.3=4.33 from STAT/TESTS/2
