Take a bigger sample A student is planning a project on
Chapter 5, Problem 5.39(choose chapter or problem)
Take a bigger sample A student is planning a project on student attitudes toward part-time work while attending school. She develops a questionnaire and plans to ask 25 randomly selected students to fi ll it out. Her statistics teacher approves the questionnaire but suggests that the sample size be increased to at least 100 students. Why is the larger sample helpful? Back up your answer by using the quick method to estimate the margin of error for samples of size 25 and for samples of size 100.
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