The fracture strength of tempered glass averages 14 (measured in thousands of pounds per
Chapter 7, Problem 7.42(choose chapter or problem)
The fracture strength of tempered glass averages 14 (measured in thousands of pounds per square inch) and has standard deviation 2. a What is the probability that the average fracture strength of 100 randomly selected pieces of this glass exceeds 14.5? b Find an interval that includes, with probability 0.95, the average fracture strength of 100 randomly selected pieces of this glass.
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