A sample of 31 observations is selected from a normal population. The sample mean is 23, and the population standard deviation is 2. Conduct the following test of hypothesis using the 0.10 significance level.
H0 : μ ≤ 22
H1 : μ > 22
A.) Is this a one- or two-tailed test?
B.) What is the decision rule?
C.) What is the value of the test statistic? (Round your answer to 2 decimal places.)
D.) What is your decision regarding H0?
E-1) What is the p-value? (Round to 4 decimal places)
E-2) Interpret the p-value? (round final answer to 2 decimal places)
there is a ____% chance of finding a z-value this large by "sampling error" when H0 is true.
A sample of 31 observations is selected from a normal population. The sample mean is 23,...
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