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Mathematics, 27.12.2020 15:30 npellot123
In a random sample of microwave ovens, the mean repair cost was $ and the standard deviation was $. Using the standard normal distribution with the appropriate calculations for a standard deviation that is known, assume the population is normally distributed, find the margin of error and construct a % confidence interval for the population mean Îź. A 98% confidence interval using the t-distribution was (687,913). Compare the results. The margin of error of Îź is:
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In a random sample of microwave ovens, the mean repair cost was $ and the standard deviation was $....
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