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The spread in the annual prices of stocks selling for under $10 and the spread in prices of those selling for over $60 are to be compared. The mean price of the stocks selling for under $10 is $8.25 and the standard deviation is $4.52. The mean price of those stocks selling for over $60 is $95.50 and the standard deviation is $8.28.
a. Not available in Connect
b. Compute the coefficients of variation. (Round the final answers to 2 decimal places.)
Relative dispersion in stocks under $10 %
Relative dispersion in stocks over $60 %
Test the hypothesis that there is no difference in the recall proportions for the two commercials.
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