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"You are the Sales Manager of Baltimore Medical Implants. You sample a total of 75 knee implants, with an observed sample mean of 375. The population mean has historically come in at 390, with standard deviation of 35. Run a hypothesis test to see if the actual sample mean is the same is the same as the population mean. Assume normal distribution." How do I know what the null hypothesis, level of significance, population of standard deviation, sample size and sample mean is?.
than:
"a) Do you accept or reject based on z-test statistic? Explain." How do I know if its good or bad?
and
"b) Do you accept or reject based on the p-value? Explain." How do I know if its good or bad?
Find the probability of making at least 15 questions correct, if student guesses on each question.
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