Question

Consider the following sets of sample data:

A: B:

284 3.77

373 3.48

400 3.57

349 3.49

358 3.57

414 4.66

363 4.70

409 4.50

374 3.72

328 3.15

444 2.99

403

390

326

For each of the above sets of sample data, calculate the coefficient of variation, CV. Round to one decimal place.

Answer #1

Researchers in a 2015 study by Flannery et al. sought to
estimate the effectiveness of the seasonal influenza vaccine in
preventing acute respiratory infection (ARI). A total of 507
subjects from Texas who showed symptoms of ARI were recruited for
this study. The data provided show the result of each subject's
test for influenza.
Click to download the data in your preferred format.
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Your firm works in construction and buys ASTM A325M8S bolts in
very large numbers. You are interested in purchasing bolts from
different suppliers and have obtained and tested samples of 200
bolts from three suppliers: Allnutt, Boltzman, Coachers.You have
tested these in your new bolt testing machine, purchased after you
had discovered your old bolt testing machine was performing
erratically. (For the purposes of this question, you are safe to
assume that the new machine works perfectly and that its...

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