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Make sure that you do the problems as they were shown in the videos or you will not receive credit for the problem. The z-score, t-score, and chi square tables are found on pages 560-563 in your textbook. The formula sheet can be found at the end of this exam. Don't Be Late! 1. A sample of 61 earthquakes and the depths of the earthquakes are recorded. Those 61 depths have a mean of 9.808 km and a standard deviation of 5.013 km. Construct a 95% confidence interval estimate of the mean of all such depths