To identify: The bias and determine how the statistic might differ from the population parameter. Also suggest correction.
This is a case of Voluntary response bias.
In such cases the students who want improvement likely to respond which raised the proportion of dissatisfied students which might be lesser.
He could use in- class census to get less biased results.
Objective: To collect feedback on teaching.
Method: Professor invites students to visit his web site and respond to questionnaire.
Result: 68% students who responded found dissatisfied that made professor depressed.
Explanation:
This is a case of Voluntary response bias.
In such cases the students who want improvement likely to respond which raised the proportion of dissatisfied students.
He could use in- class census to get less biased results.
Chapter 10 Solutions
PRECALCULUS:GRAPHICAL,...-NASTA ED.
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