Given the following hypotheses: H 0 : µ = 440 H 1 : µ ? 440 A random sample of 10 observations is se
Given the following hypotheses:
H0: μ = 440
H1: μ ≠ 440
A random sample of 10 observations is selected from a normal population. The sample mean was 445 and the sample standard deviation 4. Using the 0.05 significance level:
a. State the decision rule
refect H0 when the test statistic is __________ the interval (__.__)
b. compute the value of the test statistic.