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A quality control test has five equally likely outcomes - A, B, C, D and E.
a) What is the probability of C occurring?
b) What is the probability of A or B or C occurring?
c) What is the probability that neither A nor B occur?
A representative of the environmental protection agency (EPA) wants to select samples from 10 landfills. The director has 15 landfills from which she can collect samples.How many different samples are possible?
Develop a minimum cost schedule for the part-time employees. (How many start at each hour?). What is the total payroll for the part-time employees?
Evaluate the mean wait time and throughput rate
Construct a frequency distribution of the sample mean, and plot a histogram of this distribution. Use the central limit theorem to calculate and identify the sampling distribution of the sample mean.
If you were to draw a scatter plot of the number of women in the workforce versus the number of Christmas trees sold in the United States for each year between 1930 and the present
The following show the hours of sleep on weeknights for a sample of individuals age 49 and younger and for a sample of individuals age 50 and older.
The number of shark attacks per year in the US is distributed approximately normal, with a Variance of 31.8 and a standard deviation of 10.
The participants in a television quiz show are picked from a large pool of applicants with approximately equal numbers of men and women.
Standard deviation is $0.10. At α = 0.01, is there significant difference in price? Determine the 99% confidence interval of the difference in the means.
Calculate the mean, mode and median of the grouped data derived from the frequency distribution above. Compare the results obtained from
On a very hot summer day, 5 percent of the production employees at Midland States Steel are absent from work. The production employees are randomly selected for a special in-depth study on absenteeism.
How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 0.04 with 98% confidence?
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