nutrition study investigated knowledge about fruit juices. The study was conducted in a pediatric clinic. Accompanying parents were asked to classify a national brand of “fruit drink”, that contains less than 10% fruit juice, as 100% fruit juice, fruit juice mix, or no fruit juice at all. The investigators asked 150 parents. The table contains the results. Juice Content Gender Female Gender Male Total 100% 15 15 30 1%-99% 55 25 80 0% 30 10 40 100 50 150 The chi‑square statistic for the null hypothesis of independence has: - 6 degrees of freedom. - 3 degrees of freedom. - 2 degrees of freedom. - 4 degrees of freedom.
nutrition study investigated knowledge about fruit juices. The study was conducted in a pediatric clinic. Accompanying parents were asked to classify a national brand of “fruit drink”, that contains less than 10% fruit juice, as 100% fruit juice, fruit juice mix, or no fruit juice at all. The investigators asked 150 parents. The table contains the results. Juice Content Gender Female Gender Male Total 100% 15 15 30 1%-99% 55 25 80 0% 30 10 40 100 50 150 The chi‑square statistic for the null hypothesis of independence has: - 6 degrees of freedom. - 3 degrees of freedom. - 2 degrees of freedom. - 4 degrees of freedom.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A nutrition study investigated knowledge about fruit juices. The study was conducted in a pediatric clinic. Accompanying parents were asked to classify a national brand of “fruit drink”, that contains less than 10% fruit juice, as 100% fruit juice, fruit juice mix, or no fruit juice at all. The investigators asked 150 parents. The table contains the results.
| Juice Content | Gender Female | Gender Male | Total |
| 100% | 15 | 15 | 30 |
| 1%-99% | 55 | 25 | 80 |
| 0% | 30 | 10 | 40 |
| 100 | 50 | 150 |
The chi‑square statistic for the null hypothesis of independence has:
- 6 degrees of freedom.
- 3 degrees of freedom.
- 2 degrees of freedom.
- 4 degrees of freedom.
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