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Mathematics, 05.05.2020 06:34 mckenzieg
Ten years ago of American families owned stocks or stock funds. Sample data collected by the Investment Company Institute indicates that the percentage is now (The Wall Street Journal, October 5, 2012). a. Develop appropriate hypotheses such that rejection of will support the conclusion that a smaller proportion of American families own stocks or stock funds in 2012 than ten years ago. : : b. Assume the Investment Company Institute sampled American families to estimate that the percent owning stocks or stock funds was in . What is the -value for your hypothesis test (to 4 decimals)
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Ten years ago of American families owned stocks or stock funds. Sample data collected by the Investm...
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