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A sample of 25 items produced a mean of 46. Assume that the population standard deviation is 6. Test to determine if we can infer at α = 0.05 that the population mean is less than 50 using the following steps:
a) State the hypotheses.
b) State the relevant test statistic and the reason for the selection.
c) Level of significance.
d) Apply the Decision rule.
e) Calculate test statistics.
f) Provide a conclusion based on the above steps.
For this problem read portion "Estimate Population Proportion" posted on Blackboard in week 8 Lectures section.
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