Question #2018832: Hypothesis tests: Z-test

Question: 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 1 week. At the end of the week, the students must identify which of three designs they prefer. The distribution of preference is as follows:

Design 1 Design 2 Design 3

54 38 28

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

Solution: The solution consists of 191 words (2 pages)
Deliverables: Word Document

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