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
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
Problem 8CR
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Question
- 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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