Percent confidence interval for the proportion
Of 50 bank customers depositing a check, 25 received some cash back. (a) Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (Round your answers to 2 decimal places.) The 90% confidence interval to
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A random sample of ten shipments of stick-on labels showed the following order sizes. 10,000 18,000 34,000 62,000 17,000 10,000 51,000 17,000 15,200 15,000
Inspection of a random sample of 28 American Airlines MD?80 aircraft showed that 17 needed repairs to fix a wiring problem that might compromise safety. (a) How large a sample would be needed to estimate the true proportion of jets with the wiring
A report states that 38% of home owners had a vegetable garden. How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 6% with 99% confidence?
Estimate the standard deviation using Method 3 (the Empirical Rule for a normal distribution). (Round your answer to 2 decimal places.) Standard deviation (b) What sample size
Of 50 bank customers depositing a check, 25 received some cash back. (a) Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (Round your answers to 2 decimal places.) The 90% confidence interval t
Comutation exam, I have an exam and would like a further information. Will this exam come back completed, and how does this service work?
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