9.1.75.T – Environmental Agency Worry Cars Violating Clean Air
MyStatLab
Pearson
They give the margin of error and confidence and ask how many vehicles should be sampled.
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They give the margin of error and confidence and ask how many vehicles should be sampled.
Your numbers will vary.
They give you some polling data and ask you what the confidence level is.
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They tell you the % of adults over 50 who have never graduated from high school and ask how many should be surveyed with various margin of errors.
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They give you some x-values, and probabilities, and ask for the missing probabilities.
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Various probabilities are given about % of users that are from the US and that login everyday. Questions are asked about probability of various events such as the percentage from the US, type of probability, and making a contingency table.
Your numbers will vary.
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.