Mathematics, 25.10.2019 21:43 lucahoffmannm
Suppose the mean wait-time for a telephone reservation agent at a large airline is 45 seconds. a manager with the airline is concerned that business may be lost due to customers having to wait too long for an agent. to address this concern, the manager develops new airline reservation policies that are intended to reduce the amount of time an agent needs to spend with each customer. a random sample of 250 customers results in a sample mean wait-time of 44.1 seconds with a standard deviation of 4.2 seconds. using α = 0.05 level of significance, do you believe the new policies were effective in reducing wait time? do you think the results have any practical significance?
Answers: 2
Mathematics, 21.06.2019 14:30
Chandler was a caretaker at the state zoo. he noticed that the number of animals adopted by the zoo increased at a constant rate every year since 2010. which of the following graphs shows the slowest rate at which the animals in the zoo were adopted?
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Mathematics, 21.06.2019 15:00
What are the relative frequencies to the nearest hundredth of the columns of the two-way table?
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Suppose the mean wait-time for a telephone reservation agent at a large airline is 45 seconds. a man...
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