1. An exit poll was conducted in the 2010 California guber-natorial election using 3889 voters. Election results showed

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1 An Exit Poll Was Conducted In The 2010 California Guber Natorial Election Using 3889 Voters Election Results Showed 1 (59.26 KiB) Viewed 9 times

1. An exit poll was conducted in the 2010 California guber-natorial election using 3889 voters. Election results showed that 53.8% of the population of all voters voted for Old McDonald. What was the mean and standard deviation of the sampling distribution of the sample proportion who voted for him? Interpret what these measures mean. 2. Refer back to question 1. In this election, 40.9% voted for Humpty Dumpty. Find the mean and standard deviation of the sampling distribution of the proportion of the 3889 people in the sample who voted for Humpty Dumpty. 3. As part of a drug research study, individuals suffering from arthritis take an experimental pain relief medication. Suppose that 25% of all individuals who take the new drug experience a certain side effect. For a given individual, let X be either 1 or 0, depending on whether s/he experienced the side effect or not, respectively. a. If n=3 people take the drug, find the probability distribution of the proportion who will experience the side effect. b. What are the mean and standard deviation of the sample proportion? c. Repeat part b for a group of n=10 individuals and n=100. What happens to the mean and standard deviation of the sample proportion as n increases?