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9. [-/4 Points] DETAILS You may need to use the appropriate appendix table or technology to answer this question. In a sample of 400
9. [-/4 Points] DETAILS You may need to use the appropriate appendix table or technology to answer this question. In a sample of 400 registered voters, 219 were Democrats. MY NOTES ASK YOUR TEACHER (a) Provide a 95% confidence interval for the proportion of registered Democrats in the population. (Round your answers to five decimal places.) to (b) There are 169 million registered voters in the US. Determine an interval for the number (how many) of registered Democrats in the population. (Round your answers to the nearest whole number.) to
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Calculus
Authors: Dale Varberg, Edwin J. Purcell, Steven E. Rigdon
9th edition
131429248, 978-0131429246
