A random sample of n = 16 mid-sized cars tested for fuel consumption gave a mean of x = 20.01 miles per gallon with a standard deviation of s = 2.84 miles per gallon. Assuming that the miles per gallon given by all mid-sized cars have a normal distribution, find a 99% confidence interval for the population mean,

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A: Please find the solution in the attachment

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A: force  length  0 21 20 100 40 185 60 255 80 350

Q: 500 1300 V14 45 24 d'f-e 45

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