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A sample of size n = 10 is drawn from a population. The data is shown below. 119.1 95.2 119.1 86.5 78.4 107.1 86.8 119.1 96.2 90.1 What is the range of this data set? range = What is the standard deviation of this data set? (Remember, it is a sample.) Please report the answer with appropriate rounding, reporting 2 more decimal places than the original data. Please, please, please do not calculate the value by hand. stdev = Question Help: Message instructor Submit Question​

A sample of size n 10 is drawn from a population The data is shown below 1191 952 1191 865 784 1071 868 1191 962 901 What is the range of this data set range Wh class=


Answer :

subtomex0

Part 1

[tex]range = 119.1 - 78 .4 = 40.7[/tex]

Part 2

First determine the mean average:

[tex]mean = \frac{119.1 + 95.2 + ... + 90.1}{10} = 99.76[/tex]

[tex]stdev = \sqrt{ \frac{ \sum(x - mean) {}^{2} }{n - 1} } = \sqrt{ \frac{(119.1 - 99.76) {}^{2} + ... }{10 - 1} } = 15.285[/tex]

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