Assignment
Students will complete the assignment with all procedure, using the formula.
At th...
Mathematics, 04.06.2021 17:50 brooklynpage3930
Assignment
Students will complete the assignment with all procedure, using the formula.
At the mall every day, thousands of people pass through security on one of two levels: level C or level D. Suppose that, on average, it takes people 20 minutes to pass through security on level A with a standard deviation of 8.5 minutes to pass through security on level A. On level B, the mean and standard deviation are 18 and 6 minutes, respectively.
Each day, the mall looks at separate random samples of 200 people from each level. They calculate the mean time for each sample, then look at the difference between the sample means (XA-XB)
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Answers: 1
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