One-way analysis of variance

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Reference no: EM1312318

A human factors psychologist studied three computer keyboard designs. Three samples of individuals were given material to type on a particular keyboard, and the number of errors committed by each participant was recorded. The data are as follows:

Keyboard A	Keyboard B	Keyboard C
0	6	6
4	8	5
0	5	9
1	4	4
0	2	6

Are these data sufficient to conclude that three are significant differences in typing performance among the three keyboard designs? Compute a one-way Analysis of variance (ANOVA) to address this research question using a 0.05 significance level.

1. What is your computed answer?

2. What would be the null hypothesis in this study?

3. What would be the alternate hypothesis?

4. What was the critical F value chosen?

5. Is there a significant difference between the groups?

6. Interpret your answer.

Reference no: EM1312318

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