title: “9.1 homework” author: “Julia McMahon” date: “October 28, 2015” output: html_document —25 p=0.150 b np(1-p) = 460.40>equal to 10 and the sample is less than 5% of the population c lower bound:0.140, upperbound:0.160 d 90% confident its between 0.410 and 0.160
27 p=0.519 b np(1-p) =460.40 greater than or equal to 10, the sample is less than 5% of the pop. c * lower bound:0.488, upper bound;0.550 d* * yes it is possible fror the population proportion to be more than 60% e* * lower bound 0.450 upper bound 0.512*
29 p=0.540 b np(1-p) = 434.20 greater than or equal to 10, the sample is less than 5% of the population c lower bound 0.520 upper bound 0.560 d * lower bound 0.509 upper bound 0.571 e* * increasing the level of confidence widens the interval*
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