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Please help with answering the question below and explain your answer.
In a simple random sample of 821 citizens, 63% said that they approve the tax raise for improving the infra-structure of the nation.
1. What is the margin of error of your estimate of the population proportion at a 95% confidence level?
2. Construct a 95% confidence interval for the proportion of all the people who approve the tax raise for improving the infra-structure of the nation.
3. How large a sample should be taken to estimate this proportion with 95% confidence with a margin of error of no more than 2% points?
What is the next test that is performed to determine specifically which of the four groups are different - what statistical test should be used?
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the mean number of errors per page made by a clerk in the word processing pool of a bank is thought to be 2.8 with the
Case study on Page 635-636 of the text BOOK: (Anderson, Sweeney, Williams, Essentials of Modern Business Statistics w/ Microsoft Excel, 5th ed., South-Western College Pub, ISBN 978-0840062383 )Alumni Giving.
(a) Determine the overshoot and rise time for Gp(s) = 1 and for p = 3. (b) Select an appropriate value for p that will give an overshoot of 1 % and compare the results.
Write a 500-word essay explaining why reading, writing and language are an important part of his life inside and outside the classroom. Students should share examples of how they answer the call to service at Union Catholic High School, home or in..
Suppose that, when we survey 20 randomly selected dish owners, we fi nd that 4 of the dish owners actually subscribe to at least one premium movie channel. Using a probability you found in this exercise as the basis for your answer, do you believe..
A nutritionist wants to determine which of two weight loss programs is more effective. He assigns 25 volunteers to each program and records each participant's weight loss after 2 months.
JBGHI demands a sample large enough to ensure an error of ± 2% with 90% confidence. What is the necessary sample size?
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