Mathematics, 22.04.2020 02:22 blazepixi
We intend to estimate the average driving time of a group of commuters. From a previous study, we believe that the average time is 42 minutes with a standard deviation of 9 minutes. We want our 90 percent confidence interval to have a margin of error of no more than plus or minus 3 minutes. What is the smallest sample size that we should consider
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We intend to estimate the average driving time of a group of commuters. From a previous study, we be...
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