Problem 8.1.37 – An Amusement Park has a New Roller Coaster (multiple versions)
MyStatLab
Pearson
What bias might cause a problem?
What bias might cause a problem?
Do you think the proposed sampling method is appropriate? 1. Local doctors that do not accept insurance 2. Local businesses anticipate sales to decrease.
Identify the population, the population parameter of interest, sampling frame, the sample, the sampling method, and source of bias when a business magazine sent a questionnaire to treasurers at top 300 companies.
They tell you a goal is to have a certain % be able to program their DVD player, tell you how many in poll and asks to find mistakes of a student.
Your numbers will vary.
Three scatterplots are given. Questions asked about the association, negative association, positive association, linear association, weak or moderately strong association.