Consider the following hypotheses:
Ηρ: μ = 8,400
ΗΑ: μ ≠ 8,400
The population is normally distributed with a population standard deviation of 630. Compute the value of the test statistic and the
resulting p-value for each of the following sample results. For each sample, determine if you can "reject/do not reject" the null
hypothesis at the 10% significance level.
Note: Negative values should be indicated by a minus sign. Round test statistic to 2 decimal places and p-value to 4 decimal
places.
a. x = 8,470; n = 140
b. x = 8,470; n = 320
c. x = 8,180; n = 31
d. x = 8,270; n = 31
Test statistic
p-value
Do not reject Ho
Reject Ho
Reject Ho
Do not reject Ho