In: Statistics and Probability
An employer wants to examine if production times are faster with more work training experience during the first years of employment. Using the hypothetical data provided below, test whether production time (in minutes) is equal for each level of training experience.
First month (0 months) |
1-6 months |
Over 6 months |
3.4 |
2.5 |
1.8 |
4.2 |
3.0 |
2.6 |
5.1 |
5.0 |
2.3 |
2.8 |
1.9 |
3.0 |
a. Which test will you use to determine significance?
b. State the null and alternative hypotheses
c. State your research criteria
d. Calculate your test statistic
e. State your decision regarding significance
f. Calculate effect size and/or proportion of variance
g. Calculate a post-hoc test (pairwise comparison). Which of the variables are significantly different from one another (if any)?