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WORKSHEET – Extra examples

WORKSHEET Extra examples (Chapter 1: sections , , ) 1. Identify the population and the sample: a) A survey of 1353 American households found that 18% of the households own a computer. b) A recent survey of 2625 elementary school children found that 28% of the children could be classified obese. c) The average weight of every sixth person entering the mall within 3 hour period was 146 lb. 2. Determine whether the numerical value is a parameter or a statistics (and explain): a) A recent survey by the alumni of a major university indicated that the average salary of 10,000 of its 300,000 graduates was 125,000. b) The average salary of all assembly-line employees at a certain car manufacturer is $33,000. c) The average late fee for 360 credit card holders was found to be $ 3. For the studies described, identify the population, sample, population parameters, and sample statistics: a) In a USA Today Internet poll, readers responded voluntarily to the question Do you consume at least one caffeinated beverage every day?

million. c) There is a relationship between smoking cigarettes and getting emphysema. d) From past figures, it is predicted that 39% of the registered voters in California will ... Series1 62 41 28 26 31 ... A study where you would like to determine the chance getting three girls in a family of three children d) A study of the effects of a ...

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