Find the minimum sample size to estimate
Employ E = $136 and a confidence level of 99% and known standard deviation (sigma) of = $503. Find the minimum sample size to estimate an unknown population mean M.
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If both pipes are open, how long it takes to fill tank cran-apple juice? Twice the number plus 1 is divided 1 less than half number. Result is 5. Determine the number?
The medical researcher from nation institute of health has gathered samples on life expectancies of people who are longtime smokers and those who are nonsmokers.
Richard has been given 7-question multiple-choice quiz in his history class. Each and every question has three answers, of which only one is correct. Since Richard hasn't attended the class recently, he doesn't know any of the answers. Supposing t
If pattern of maximum height reached during every bounce continues. Find the algebraic expression for maximum height reached in nth bounce.
Assume that prices of a certain model of new homes are normally distributed with mean of $150,000. Determine the percentage of buyers who paid more than $154,800 if the standard deviation is $2,400
In random sample of 150 clerical workers, 30 exhibit an intense dislike for their jobs. Compute a 94% confidence interval for the proportion of clerical workers who exhibit an intense dislike for their jobs.
Reading readiness of preschoolers from impoverished neighborhood (n=20) was measured using standardized test. Nationally, the mean on this test for preschoolers is 30.9, with SD = 2.08. What percentage of children score between 25 and 28.5?
Twenty students are eligible for free after school tutoring. A simple random sample of five is chosen. How many different simple random selections are possible?
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