18. A credit card company claims that the mean time the customers spend on

hold is 3.5 minutes. An employee of this company believes that customers

spend more than 3.5 minutes on hold. A random sample of n = 36 calls is

selected and the mean time the customers in this sample spent on hold was

5.15 minutes. All conditions for inference were met and the p-value for the

appropriate hypothesis test was 0.031. Which of the following statements is the

best interpretation of the p-value?

Question

3 July, 18:49

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Ezra Mckee · Answer 1

Answer: If the null hypothesis is true, the probability of observing a sample mean of at least 5.15 minutes is. 031