Here are the results for the KNOWLEDGE questionnaire, which the students completed after their one-hour lecture:

Which is the most sensible conclusion?

(a) There are significant differences between the groups on KNOWLEDGE; specifically, Colin Cashew’s group retained more of the lecture than the other two groups

(b) There are significant differences between the groups on KNOWLEDGE; specifically, Madame MacAdamia’s group retained more of the lecture than Professor P.
Nutt’s group

(c) There are significant differences between all of the groups on KNOWLEDGE;
specifically, Professor P. Nutt’s group retained more of the lecture than the other two groups

(d) There are no significant differences between the groups on KNOWLEGE

ANOVA KNOWLEDGE Sum of Squares df Mean Square F Sig. Between Groups 110,3100 2 55.1550 5,3557 .0057 Within Groups 1482.9689 144 10.2984 Total 1593,2789 146 Descriptives KNOWLEDGE Mean 1,00 P.Nutt 10.5781 2.00 MacAdamia 10.0408 3.00 Cashew 12.3235