# Tutorial2 - Tutorial 2 1(1pt The U.S Energy Information...

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Tutorial 2 1. ( 1pt ) The U.S. Energy Information Administration monitors all nuclear power plants operating in the United States. The table lists the number of active nuclear power plants operating in each of a sample of 20 states. a. Find the mean, median, and mode of this data set. b. Arrange the 20 values in the table from lowest to highest. Next, eliminate the lowest two values and the highest two values from the data set and find the mean of the remaining data values. The result is called a 10% trimmed mean , since it is calculated after removing the highest 10% and the lowest 10% of the data values. What advantages does a trimmed mean have over the regular arithmetic mean? c. Find the range, mean deviation, variance, and standard deviation of the initial data set. d. Eliminate the smallest and largest value from the data set and repeat part c . 2 . ( 1pt )A widely used technique for estimating the length of time it takes workers to produce a product is the time study . In a time study, the task to be studied is divided into measurable

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Tutorial2 - Tutorial 2 1(1pt The U.S Energy Information...

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