To make payments, the company takes an average of no less than 39 days with the previous method. In.
To make payments, the company takes an average of no less than 39 days with the previous method. In order to assess whether the population mean using the new billing system is substantially less than 39 days, the company will use a sample of n = 65 times to make payments to find a 95% confidence interval for µ. The average of these 65 times is 18.10 days, and we will assume that the population standard deviation is 4.2 days. Build the confidence interval May 16 2022 05:45 PM
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