Solve the Problem. -Suppose That Replacement Times for Washing Machines Are Normally Distributed

question 41

Multiple Choice

Solve the problem.
-Suppose that replacement times for washing machines are normally distributed with a mean of 9.3 years and a standard deviation of 2 years. Find the replacement time that separates the top 18% from the bottom 82%.

• A)11.1 years
• B)9.7 years
• C)10.6 years
• D)7.5 years

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