In: Statistics and Probability
Three groups of students involved in the same curriculum are
obliged to study for 15 minutes,...
- Three groups of students involved in the same curriculum are
obliged to study for 15 minutes, 30 minutes, or 90 minutes a night
for 8 weeks before taking a mathematics test. Their scores are as
follows:
15 Minutes: 43, 39, 55, 56,
73
30 Minutes: 55, 58, 66, 79, 82
90 Minutes: 61, 66, 85, 86, 91
-
- Are the differences statistically significant? (You MUST show
the F-value and write up as your evidence. Do not simply
reply yes or no)
-
- If the F is significant, which group(s) is(are)
significantly different from which? (Again, you must show the
significant post hoc value as evidence)
-
- How much of the difference in mathematics performance can be
explained by how long students study?