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"Readability Levels of Magazine Ads," by F.K. Shuptrine and D.D. McVicker, is an article in the...

"Readability Levels of Magazine Ads," by F.K. Shuptrine and D.D. McVicker, is an article in the Journal of Advertising Research. The following is a list of the number of three-syllable (or longer) words in advertising copy of randomly selected magazine advertisements. 34 21 37 31 10 24 39 10 17 18 32 17 3 10 6 5 6 6 13 22 25 3 5 2 9 3 0 4 29 26 5 5 24 15 3 8 16 9 10 3 12 10 10 10 11 12 13 1 9 43 13 14 32 24 15 Use eight classes

. (a) Find the class width.

(b) Make a frequency table showing class limits, class boundaries, midpoints, frequencies, relative frequencies, and cumulative frequencies. (Round your relative frequencies to two decimal places.) Class Limits Class Boundaries Lower − Upper Lower − Upper Midpoint Frequency Relative Frequency Cumulative Frequency 0 − 5 − 6 − 11 − 12 − 17 − 18 − 23 − 24 − 29 − 30 − 35 − 36 − 41 − 42 − 47 −

(c) Draw a histogram. Maple Generated Plot Maple Generated Plot Maple Generated Plot Maple Generated Plot

(d) Draw a relative-frequency histogram. Maple Generated Plot Maple Generated Plot Maple Generated Plot Maple Generated Plot (e) Categorize the basic distribution shape. uniform skewed right bimodal skewed left mound-shaped symmetrical

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