Home owners had a vegetable garden
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?
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A final exam in Math 160 has a mean of 73 with the standard deviation 7.8. If 24 students are randomly selected, determine the probability that the mean of their test scores is less than 76
When the actual value of mu is close to hypothesized value of mu, what can be said about the value of beta
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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
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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