Mathematics, 02.12.2020 17:10 hoboethan
Since the Boston marathon began in 1897, the finish time has been incrementally decreasing. The mean finish time to date is 231 minutes with a standard deviation of 40 minutes. Based on this information, what would allow us to use a Z-score in order to construct a confidence interval to estimate the mean finishing time of the most recent Boston Marathon with a sample size of 40 participants. Choose all that apply.
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Since the Boston marathon began in 1897, the finish time has been incrementally decreasing. The mean...
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