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Mathematics, 03.04.2020 02:42 live4dramaoy0yf9
Ten years ago 53% of American families owned stocks or stock funds. Sample data collected by the Investment Company Institute indicates that the percentage is now 46% (The Wall Street Journal, October 5, 2012).a. Develop appropriate hypotheses such that rejection of H0 will support the conclusion that a smaller proportion of American families owned stocks or stock funds in 2012 than ten years prior. H0: Ha: b. Assume the Investment Company Institute sampled 300 American families to estimate that the percent owning stocks or stock funds was 46% in 2012. What is the p-value for your hypothesis test?c. At α = 0.01 , what is your conclusion?
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Ten years ago 53% of American families owned stocks or stock funds. Sample data collected by the Inv...
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