Appropriate at significance level

Reference no: EM131821250

A particular cell phone case is available in a choice of four different colors. A store sells all four colors. To test the hypothesis that sales are equally divided among the four colors, a random sample of 100 purchases is identified.

a. If the resulting X² value were 6.4, what conclusion would you reach when using a test with significance level 0.05?

b. What conclusion would be appropriate at significance level 0.01 if X² = 15.3?

c. If there were six different covers rather than just four, what would you conclude if X² = 13.7 and a test with α = 0.05 was used?

Reference no: EM131821250

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