ANOVA in Minitab and correcting interpretations
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I need to know how to calculate this by using TI84 or minitab:
A study was conducted in which a random sample of 24 HS students was asked to give their grade point average (GPA). The block design below shows the GPAs of male and female and students from four different age groups. Use technology tool and the block design to perform a two-way ANOVA test.
Use alpha = .10
Gender Under 15 15-16 17-18 Over 18
Male 2.3, 2.4, 3.9 3.2, 2.5, 1.9 2.6, 2.4, 2.3 1.5, 1.8, 1.7
Female 3.1, 2.1, 3.6 2.1, 3.6, 2.2 2.3, 3.1, 2.7 2.7, 3.4, 3.63
Choose the correct answer:
- Fail to reject all null hypotheses
- Reject all null hypotheses
- Reject the null hypotheses for both the main effects only
- Reject the null hypotheses for one of the main effects only
Choose the correct interpretation below:
- These is no significant difference in the means of the GPAs.
- Age has no effect on GPA, gender has no effect on GPA and the interaction between age and gender has no effect on GPA.
- Age has an effect on GPA, gender has no effect on GPA and the interaction between age and gender has no effect on GPA
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Solution Summary
Step by step method for computing test statistic for two way ANOVA is given in the answer.
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