You wish to test the following claim (HaHa) at a significance
level of α=0.001α=0.001.
You believe the population is normally distributed, but you do not know the standard deviation. You obtain the following sample of data:
What is the critical value for this test? (Report answer accurate to three decimal places.)
critical value = ±±
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
The test statistic is...
This test statistic leads to a decision to...
As such, the final conclusion is that...
The statistical software output for this problem is :
critical value = ± 4.587
test statistic = -3.509
The test statistic is not in the critical region .
fail to reject the null
There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 82.7.
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