You believe that requiring students to attend a series of pr

You believe that requiring students to attend a series of presentations on study skills will improve their grades. You are concerned that boys and girls might react differently to such a series and that tridents in grades 9 and 10 might react differently than this in grades 11 and 12. You set up an experiment involving 100 students in 9th and 10th grade and 100 students in 11th and 12th grade. (assume there are equal numbers of boys and girls in each grade.) You intend to measure improvement based on pre and post treatment grade point averages.

Describe the design of an experiment to help you determine if a set of presentations on study skills is effective in improving grades.

Suppose you have 50 students and need tossing them to two groups of equal size. Desiccate a randomization procedure that would achieve this.

Suppose you have 50 students and need to assign them to two independent groups, Describe a randomization procedure that would achieve this.

Describe an appropriate method of analysis for the data you collected from this experiment.

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