Estimate the population mean by finding a 99.9% confidence interval given a sample of size 331, with a mean of 48.4 and a standard deviation of 7.2. Preliminary: Is it safe to assume that n≤0.05n≤0.05 of all subjects in the population? Yes No Correct Is n≥30n≥30? No Yes Correct Confidence Interval: What is the 99.9% confidence interval to estimate the population mean? Enter the tri-linear inequality values accurate to one decimal place. <μ<

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