Question: For a data set obtained from a sample, n=76 and x=48.80. It is known that =4.3. a. What is the point estimate of ? The

For a data set obtained from a sample, n=76 and x=48.80. It is known that =4.3.

a. What is the point estimate of ?

The point estimate is .

b. Make a 95% confidence interval for .

Round your answers to two decimal places.

(,)

c. What is the margin of error of estimate for part b?

Round your answer to three decimal places.

E=

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