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A random sample of bolts is taken from inventory, and their lengths are measured. The average length in the sample is 5.3 inches with a

A random sample of bolts is taken from inventory, and their lengths are measured. The average length in the sample is 5.3 inches with a standard deviation of .2 inches. The sample size was 50. The point estimate for the mean length of all bolts in inventory is

Multiple Choice

4.908 to 5.692 inches.

5.3 inches plus or minus .2

.2 inches.

5.3 inches.

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