Question

Asked Jan 5, 2020

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In each of Exercises, the quantitative data set under consideration has roughly a bell-shaped distribution. Apply the empirical rule to solve each exercise.

The data set has 200 observations and has mean 20 and standard deviation 4. Approximately how many observations lie between 16 and 24?

Step 1

The mean of the data set is 20 and standard deviation is 4. The upper limit of interval is 24 and lower limit is 16. There are 200 observations in the data set.

Step 2

To obtain the standard deviation distance from mean to 24*,*

Step 3

Thus, 24 is in 1 standard deviation distance from mean.

To obtain t...

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