For a data set obtained from a sample, n = 75 and x = 48.30. It is known that o = 4.3. a. What is the point estimate of μ? The point estimate is i b. Make a 97% confidence interval for μ. Round your answers to two decimal places. (i c. What is the margin of error of estimate for part b? i Round your answer to three decimal places. E = i

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