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This past year, a Gallup poll surveyed 1228 households in the U.S about gun ownership. Of those surveyed, 435 said they had at least one gun in their home. Find and interpret the 95% confidence interval for the population proportion.
Statistics and Probability, Statistics
For a recent evening at a small, old-fashioned movie theater, 25% of the moviegoers were female and 75% were male. There were two movies playing that evening. One was a romantic comedy, and the other was a World War II f ...
A company recently had 26 million shares outstanding trading at $45/share. The company announces its intention to raise $290M by selling new shares. What price shoukd the company expect its existing shares shares to sell ...
A blaster rifle manufacturing facility on Naboo has 6,500 employees. The employees were asked whether they preferred a four-day work week (10 hours per day), a five- day work week (8 hours per day), or flexible hours. Yo ...
Question: A random variable X is known to be distributed either N(1,3) or N(2,3). The mill hypothesis is that the mean is equal to 1. The alternative hypothesis is that the mean is 2. a. With a sample of 10 draws from th ...
A national air traffic control system handled an average of 47,556 flights during 28 randomly selected days in a recent year. The standard deviation for this sample is 6,251 flights per day. Complete parts a through c be ...
Assume that the critic finds that 50 percent of the movies have positive comments about the plot, 50 percent have positive comments about the acting, and 30 percent were not given positive comments about either plot or a ...
Suppose that college science textbooks on average cost 225 dollars with a standard deviation of 45 dollars. Suppose that a random sample of 40 college science textbooks was taken. Find the probability that the sample mea ...
For the following two questions, please, determine the correct hypothesis test, state the null and research hypotheses in words and in symbols, then conduct the hypothesis test, and report the results in writing. 1. A re ...
32% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and ask each to name the reason he or she uses credit cards. Find the probability that the number ...
Question 1 (CO6) From a random sample of 68 businesses, it is found that the mean time that employees spend on personal issues each week is 4.9 hours with a standard deviation of 0.35 hours. What is the 95% confidence in ...
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