PROBLEM NO. 9 A manufacturer of a certain type of large machine wishes to buy rivets from one of two manufacturers. It is important that the breaking strength of each rivet exceed 10,000 psi. Two manufacturers (A and B) offer this type of rivet and both have rivets whose breaking strength is normally distributed. The mean breaking strengths for manufacturers A and B are 14,000 psi and 13,000 psi, respectively. The standard deviations are 2000 psi and 1000 psi, respectively. Which manufacturer will produce, on the average, the fewest number of defective rivets?
PROBLEM NO. 9 A manufacturer of a certain type of large machine wishes to buy rivets from one of two manufacturers. It is important that the breaking strength of each rivet exceed 10,000 psi. Two manufacturers (A and B) offer this type of rivet and both have rivets whose breaking strength is normally distributed. The mean breaking strengths for manufacturers A and B are 14,000 psi and 13,000 psi, respectively. The standard deviations are 2000 psi and 1000 psi, respectively. Which manufacturer will produce, on the average, the fewest number of defective rivets?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:PROBLEM NO. 9
A manufacturer of a certain type of large machine wishes to buy rivets from one of two
manufacturers. It is important that the breaking strength of each rivet exceed 10,000 psi.
Two manufacturers (A and B) offer this type of rivet and both have rivets whose breaking
strength is normally distributed. The mean breaking strengths for manufacturers A and B are
14,000 psi and 13,000 psi, respectively. The standard deviations are 2000 psi and 1000 psi,
respectively. Which manufacturer will produce, on the average, the fewest number of
defective rivets?
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