warpbreaks is a built-in R dataset which gives This data set gives the number of warp...

warpbreaks is a built-in R dataset which gives This data set gives the number of warp breaks per loom, where a loom corresponds to a fixed length of yarn. We are interested in some descriptive statistics related to the warpbreaks dataset. We can access this data directly and convert the time series into a vector by using the assignment x <- warpbreaks$breaks. (In R, use ? warpbreaks for info on this dataset.) The values of x if assigned as above are:

[1] 26 30 54 25 70 52 51 26 67 18 21 29 17 12 18 35 30 36 36 21 24 18 10 43 28 15
[27] 26 27 14 29 19 29 31 41 20 44 42 26 19 16 39 28 21 39 29 20 21 24 17 13 15 15
[53] 16 28

You should get these values from the R assignment rather than manually copying.

h. What proportion of the x values are within 1 sample standard deviations away from the sample mean
i. Calculate the range of x. (one number)
j. How many times does the minimum value of x appear?
k. How many of the elements of x are smaller than the sample mean of x?

Solutions

Expert Solution

Answer h. 0.7778 or 77.87%

Part i. 60

Part j. 1

Part k. 33

R-Script:

orchestra answered 1 year ago

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