You wish to test the following claim (Ha) at a significance
level of α=0.05.
Ho:μ=52.8
Ha:μ≠52.8
You believe the population is normally distributed, but you do not
know the standard deviation. You obtain a sample of size n=55 with
mean M=54 and a standard deviation of SD=6.7.
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...
This test statistic leads to a decision to...
As such, the final conclusion is that...
a)
Test statistic,
t = (xbar - mu)/(s/sqrt(n))
t = (54 - 52.8)/(6.7/sqrt(55))
t = 1.328
b)
P-value Approach
P-value = 0.1898
c)
The p-value is greater than α
d)
fail to reject the null
e)
There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 52.8.
You wish to test the following claim (Ha) at a significance level of α=0.05. Ho:μ=52.8...
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