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In a survey of 1002 people, 701 said that they voted in a recent presidential election. Voting records show that 61% of eligible voters actually did vote.
a. Find a 99% confidence interval estimate of the proportion of people who say that they voted.
b. Are the survey results consistent with the actual voter turnout of 61%? Why or why not?
Describe the difference between sample and a sampling distribution. Your reply must be in complete sentences and you may use sketches to help you.
Among 500 freshmen pursuing a business degree at a university, 347 are enrolled in an economics course, 204 are enrolled in a mathematics course, and 160 are enrolled in both an economics and a mathematics course.
Which of the given experiments can be modelled by Poisson distribution?
Evaluate 2-month moving average and Exponential smoothing by MAD.
Given same values n=20, p=0.6, and x=17, calculate probability of x successes in n independent trails of experiment.
Based on the scatter diagram, does there appear to be any relationship between the number of assemblers and production? Explain.
Find a 95% confidence interval for the mean daily caloric intake. Interpret this interval.
Use the permutations rule to determine the total number of different ways the winners can be drawn.
Findout the variance also standard deviation for the 2 distributions above. Evalute the variation of the data sets.
The booster club has gotten several businesses and car dealers to donate gasoline and cars for the college students to use to make a maximum of 575 personal contacts daily during the fund-raising drive. The college student will donate a total of 2..
For any distribution the score that separates the highest 10% from the rest of scores is called.
Eighty-eight shoppers were interviewed at random, and 59 said that they prefer to shop alone.
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