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Near the time of an election, a cable news service performs an opinion poll of 500 probable voters. It shows that the Republican contender has an advantage of 52% to 48%.a.Develop a 95% confidence interval for the proportion favoring the Republican candidate. (Round your answers to 3 decimal places.)b.Estimate the probability that the Democratic candidate is actually leading. (Round your answer to 4 decimal places.)c.Repeat the above analysis based on a sample of 4,500 probable voters. (Round your interval to 3 decimal places and Probability to 4 decimal places.)
advertising for this variable each student must fill in the table with whatever random values each student wants.
Use decision analysis tools discussed in class to determine what action the firm should pursue in order to minimize expected loss; either manual analysis or software is acceptable. Please also calculate the minimum expected loss.
Davids ipod has about 10000 songs.the distribution of the play times for these songs is heavily skewed to the right with mean of 225 seconds and a standard deviation of 60 seconds. Suppose we choose an srs of 10 songs from this population and ..
Identify a business research topic, define the research questions for the identified problem or opportunity and select the appropriate research methodologies and techniques to use for the research project
What would be the 80th percentile for height?
Collect a real data set consisting of a sample of at least forty observations
1. introductionexplain the purpose of the study.ii. summary of data collectionidentify sample population sampling frame
Compute the mean price of the stock, what is the median price and compute the variance and standard deviation
Find the probability that a randomly selected employee earns less than $7.53
1)The term regression was originally used in 1885 by Sir Francis Galton in his analysis of the relationship between the heights of children and parents. He formulated the “law of universal regression,” which specifies that “each peculiarity in a man ..
Suppose that you have 8 cards. 5 are green and 3 are yellow. The 5 green cards are numbered 1, 2, 3, 4, and 5. The 3 yellow cards are numbered 1, 2, and 3. The cards are well shuffled. You randomly draw one card.
Convariance matrix
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