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In a random sample of 91 items produced by a machine, the quality control staff found 9 of them to be defective. Calculate the point estimate of the population proportion of defective items. Round to 4 decimal places.
While conducting a research study you find a RR = 0.67 which is used to explain the association between physical activity and depression.
Given the kinds of discussions that take place in such settings, what benefits could Sony obtain by having someone within the company "lurk" in one or more groups where digital cameras are being discussed?
Identify one areas of specific concern related to the packaging and protection of finished goods throughout their life cycle for three enterprises
Use the given degree of confidence and sample data to find the margin of error in estimating the population mean. Replacement times for washing machines 90% confidence; n =41 the sample mean (x-bar) =10.9 years s=2.3 years
predicting winning percentage for the nflthe national football league nfl records a variety of performance data for
Carbon monoxide (CO) emissions for a certain kind of car vary mean 2.4 g/mi and standard deviation 0.7g/mi. A company has 60 of these cars in its fleet. Let y represent the mean CO level for the companies fleet. Estimate the probability that y is ..
Three vehicles with a carrying capacity of 12 passengers each are used to ferry 30 international tourists and 5 local tourists from or tambo airport to vilakazi street,soweto. if the logistics manager randomly assigns the tourists to the vehicles, in..
a test is made of h0 u 69 versus h1 u 69. a sample size n 72 is drawn and x 70. the population standard deviation is
a company can sell 100x machine parts if it charges 10-0.1x dollar for each machine part. how many machine parts can be
Researchers are concerned about the binge drinking behaviors at a local university among members of Greek life organizations.
A recent study of minimum wage earners found that 51.3% of them are 16 to 24. suppose a sample of 600 minimum wage earners is selected. is it appropriate to use the normal approximation to the binomial distribution.
Create a 95% confidence interval for the difference in graduation rates between children of normal and children of very low birth weights. Be sure to check the appropriate assumptions and conditions.
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