Assume a normally distributed population of resting heart rates with μ = 76 and σ = 5. Compute the standard error for a sample size of 10. What does the standard error measure? What is the probability of selecting a random sample of 10 individuals whose mean heart rate is below 73? What is the probability of selecting a random sample of 20 individuals whose mean heart rate is below 73? What is happening to the probabilities as the sample size increases? Briefly explain why.

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