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 the three designs they prefer. The distribution of preference is as follows: Design 1 Design 2 Design 3 57 38 25 Do the results indicate any significant preferences among the three designs? Test at the α = 0.05 level of significance. (Round your answer to two decimal places.)

χ2-critical =

χ2 =

Answer 1