The table below shows the color and the model of cars purchased by 160 randomly selected customers at a car dealership in 2020.   Model Colour Toyota Hyundai Red  17 19 White 25 35 Black 35 29 1. State the null and alternative hypotheses for this test. 2. Calculate: a) the expected frequency for red vehicle and the Toyota model b) the chis-square contribution, ? 2 , for red vehicle and the Toyota model

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
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  1. The table below shows the color and the model of cars purchased by 160 randomly selected customers at a car dealership in 2020.
  Model
Colour Toyota Hyundai
Red  17 19
White 25 35
Black 35 29

1. State the null and alternative hypotheses for this test.

2. Calculate:

a) the expected frequency for red vehicle and the Toyota model

b) the chis-square contribution, ? 2 , for red vehicle and the Toyota model

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