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25-09-2022
Mathematics

Answered

We wish to estimate the average number of heartbeats per minute for a certain population. The average number of heartbeats per minute for a sample of 49 subjects was found to be 90. Assume that these 49 patients constitute a random sample, and that the population is normally distributed with a standard deviation of 10. Find a 90% confidence interval for the population mean, what is the lower bound? Round the final answer to 2 decimal places.

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