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Automated manufacturing operations are quite precise but still vary, often with distributions that are close to Normal.
The width in inches of slots cut by a milling machine follows approximately the N(0.8750, 0.0012) distribution.
The specifications allow slot widths between 0.8720 and 0.8780 inch.
What proportion of slots meet these specifications?
A regional commuter airline selected a random sample of 25 flights and found that the correlation between the number of passengers and the total weight, in pounds, of luggage stored in the luggage compartment is 0.94.
Between 1951 and 2000, there were 295 hurricanes in the Atlantic Ocean. Assume thatthe numbers of hurricanes in different years can be accurately modeled
A researcher expects the population proportion of the Cubs Fans in Chicago to be 80%. Error of less than 5% confident of an estimate to be made from a mail survey. What is the sample size required?
assuming that the population proportion p is near 0.3 find the sample size required to construct 90 confidence interval
1.a library determines that its books are returned on time 90 of the time. if 450 books are checked out what is the
Calculate the margin of error that would be used to determine a 95% confidence interval for the mean pulse rate of all women.
Level of education attained by the women from a rural region is divided into three categories: can read/write degree; primary degree; secondary and above degree
Suppose that the scores of architects on a particular creativity test are normally distributed. What percentage of architects have Z scores?
some nurses in county public health conducted a survey of woen who had received inadequate preatal care. they used
write a 1050- to 1400-word paper in which you complete the following1 explain the organizational and societal functions
question a group of 2000 randomly selected adults were asked if they are in favor of or against cloning. the
Calculate the correlation coefficient. What is the coefficient of determination from these sample statistics? What does this coefficient indicate?
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