Question: Red blood cell counts are normally distributed with a mean of 5.4 cells per micro liter and standard deviation of 0.68 cells per micro

Red blood cell counts are normally distributed with a mean of 5.4 cells per micro liter and standard deviation of 0.68 cells per micro liter. A simple random sample of 50 adults is obtained, and each person's red blood cell count (in cells per microliter) is measured. The sample mean is 5.33 cells per micro liter. Use this sample data to test the claim that the sample is from a population with a mean less than 5.4 cells per microliter. What are the correct null and alternate hypotheses? Ho: u= 5.4 Ha: 5.4

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