10.1. The Goodness-of-Fit Test http://www.ck12.org
TABLE10.4:
Type of Field Trip Number Preferring
Sporting Event 53
Play 18
Science Museum 29- What is the observed frequency value for the Science Museum category?
- What is the expected frequency value for the Sporting Event category?
- What would be the null hypothesis for the situation above?
a. There is no preference between the types of field trips that students prefer
b. There is a preference between the types of field trips that students prefer - What would be the Chi-Square statistic for the research question above?
- If the estimated Chi-Square level of significance was 5.99, would you reject or fail to reject the null hypothesis?
Review Answers
- C
- A
- B
- A
5.X^2 =∑(^0 −E)
2
E- 29
- 33
- A
- 20.0 (see table below)
TABLE10.5:
Type of Field Trip Observed Frequency Expected Frequency Chi-Square
Sporting Event 53 33. 33 12. 4
Play 18 33. 33 7. 0
Science Museum 29 33. 33 0. 6
Chi-Square Total 20. 0- Reject the Null Hypothesis