Put a customer in the bottom

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A computer manufacturer has a 1-800 customer service line to deal with customer questions and complaints. As Customer Service Manager, you conducted a survey of customer wait times. The survey data show that wait times are normally distributed with a mean of 11 minutes and a standard deviation of 3 minutes.

  1. Suppose a customer has complained that she was on hold for 22 minutes. Based on the survey data, do you think the customer's claim is accurate?
  2. What is the maximum wait time that would put a customer in the bottom 10% of all wait times?

Reference no: EM132232512

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