The patient's recovery time from a particular surgical procedure is normally distributed with a mean of 25 days and a standard deviation of 5.78 days. Let X - is the number of days a randomly selected patient needs to recover from the surgical procedure. What is the lower bound of 95% confidence interval of X?
Added by Taylor J.
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Since the confidence level is 95%, we need to find the critical value that corresponds to a 95% confidence level. This can be found using a standard normal distribution table or a calculator. The critical value for a 95% confidence level is approximately 1.96. Show more…
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