A communications company has developed three new designs for a cell phone. To evaluate consumer response, a

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A communications company has developed three new designs for a cell phone. To evaluate consumer response, a sample of 120 college students is selected and each student is given all three phones to use for one week. At the end of the week, the students must identify which of the three designs they prefer. The distribution of preference is as follows:

Design 1 Design 2 Design 3 54 38 28

a. Do the results indicate any significant preferences among the three designs?

b. Compute Cohen’s w to measure the size of the effect.

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Essentials Of Statistics For The Behavioral Sciences

ISBN: 9781337098120

9th Edition

Authors: Frederick J Gravetter, Larry B. Wallnau, Lori Ann B. Forzano

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