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According to the Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft. This
According to the Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft. This year, a certain state kept track of how many of its 1360 complaints were for identity theft. They want to know if the data provide enough evidence to show that this state had a higher proportion of identity theft than 23%? State the random variable, population parameter, and hypotheses. a) The symbol for the random variable involved in this problem is p The wording for the random variable in context is as follows: The percentage of 1360 randomly selected complaints filed with the FTC for that state that are for identity theft. b) The symbol for the parameter involved in this problem is p The wording for the parameter in context is as follows: The percentage of all complaints filed with the FTC for that state that are for identity theft. c) Fill in the correct null and alternative hypotheses: Ho: P HA: P d) A Type I error in the context of this problem would be: Rejecting that the % of all complaints filed with the FTC for that state that are for identity theft is 23% when the % is really 23%. e) A Type II error in the context of this problem would be:
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