Question: 1) A statistician employed by a consumer testing organization reports that, at 95% confidence, he has determined that the true average content of the Uncola

1) A statistician employed by a consumer testing organization reports that, at 95% confidence, he has determined that the true average content of the Uncola soft drinks is between 13.8 to 14.2 ounces. He further reports that his sample revealed an average content of 14 ounces, but he forgot to report the size of the sample he had selected. Assuming the standard deviation of the population is 1.24, determine the size of the sample. (Round your answer up to the nearest whole number.)

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2) In a random sample of 400 residents of Chattanooga, 330 residents indicated that they voted for the Democratic candidate in the last presidential election. Develop a 95% confidence interval estimate for the proportion of all Chattanooga residents who voted for the Democratic candidate. (Round your answers to three decimal places.)

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