(Answered) A simple random sample of 50 adults is obtained and each

Statistics

A simple random sample of 50 adults is obtained, and each person's red blood cell count (in cells per micro liter) is measured. The sample mean is 5.23. The population standard deviation for red blood cell count is σ=0.54. Use a 0.01 significance level to test the claim that the sample is from a population with a mean less than 5.4, which is a value often used for the upper limit of the range of normal values. What do the results suggest about the sample group?

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