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For all hypothesis tests, use both the critical value/rejection region and p-value (separate and label each...

For all hypothesis tests, use both the critical value/rejection region and p-value (separate and label each method) and show each of the 5 steps explicitly.

A. The US postal service believes less than 15% of the packages mailed during the holiday rush are delivered late. To test the claim, it randomly selects 228 packages during the holiday rush and finds that 24 are delivered late. Test the US postal service's claim at alpha = 0.01.

B. What type of error could be made based on your decision in step 5 of the above hypothesis test? Explain.

Math   Statistics-And-Probability   
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b) Since we fail to reject H0, so one can make type II error in this scenario.

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