Standard deviation

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The number of cars sold annually by used car salespeople is normally distributed with a standard deviation of 18. A random sample of 330 salespeople was taken and the mean number of cars sold annually was found to be 76. Find the 95% confidence intervalestimate of the population mean. Note: For each confidence interval, enter your answer in the form (LCL, UCL). You must include the parentheses and the commabetween the confidence limits. Confidence Interval =….

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