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April 20, 2014

Homework Help: statistics

Posted by jane on Tuesday, February 12, 2008 at 1:36pm.

3 PROFESSORS WANT TO KNOW IF HAVING 500 STUDENTS IN THEIR CLASS IS DETRIMENTAL TO PROPER LEARNING. 1ST PROFFESSOR RANDOMLY HANDS OUT THE QUESTIONNAIRE TO 50 STUDENTS; ALL 50 ARE RETURNED TO HIM DURING CLASS. 2ND PROFFESSOR HANDS OUT THE QUESTIONNAIRE TO ALL 500 STUDENTS AND ONLY 100 RETURN THEM AT THE END OF CLASS. 3RD PROFESSOR REFEERS HIS 500 STUDENTS TO A WEBSITE FOR THE QUESTIONNAIRE AND 100 OF THEM RESPOND. WHICH PROFESSOR HAD THE BEST WAY OF DOING HIS SURVEY? WHICH ONE WAS THE WORST?

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