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(Solved): The breaking strength of a rivet has a mean of 10,000 psi and a standard deviation of 714.2857 psi. ...
The breaking strength of a rivet has a mean of 10,000 psi and a standard deviation of 714.2857 psi. What is the approximate probability that the sample mean breaking strength for a random sample of 49 rivets is between 9,763 and 10,200 ?
92.5%
95.0%
96.5%
68.0%
84.5%