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QUESTION:

A company has released its new phone which is available in 4 capacity models: 32GB, 64GB, 128GB, and 256GB. A store has sold 284 phones over the last week: 63 phones of the 32GB model, 73 phones of the 64GB model, 77 of the 128GB model, and 71 of the 256GB model. We will use the chi-square goodness-of-fit test to asses whether the four models’ total sales are significantly different from one another.

Question 5 of 7

Question 5

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Which of the following are the correct null and alternative hypotheses in this case?

ANSWER:

  • H0: Sales are consistent with the claim of equal demand for the four models
  • Ha: Sales are not consistent with the claim of equal demand for the four models

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