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21 percent of the employees in a company have managerial positions, and 31 percent of the employees in the company have MBA degrees. Also, 66 percent of the managers have MBA degrees. Using the probability formulas, find the proportion of employees who either have MBAs or are managers.
You are asked to estimate the chance that the sum will be positive.
Describe what do you mean by terms 'false positive" and " false negative".
Thermometers are normally distributed with a mean of O Celsius and a standard deviation of 1. OO Celsius, Find the probability that a randomly selected thermometer reads between - 2.23 and - 1.25 and draw a sketch of the region. The probability is..
Which of the examples below represent the Ratio level of scaling?
At the .05 level of significance, is there evidence of a difference in variability in the shipping time between the two outlets? What decision should the carpet manufacturer make?
Please address the following question: When is the mean the best measure of central tendency? When is the median the best measure of central tendency?
What is the likelihood all four of the selected flights arrived within 15 minutes of the scheduled time?
Use this information to develop a 95% confidence interval to estimate the production variance for the hourly wages of production workers in U.S. What is the value of upper limit of this confidence interval?
The diameters of oranges in a certain orchard are normally distributed with a mean of 5.26 inches and a standard deviation of 0.500 inches.
The 'interaction effect' was also important. By using the means in the table above write a statement explaining how the anti-anxiety drug appears to affect anxiety. Are the outcomes consistent with the hypothesis proposed by the researchers?
Solve the following problem for distribution with a mean 80 and standard deviation of 10. Find out at least what percentage of values will fall between 60 and 100.
Calculate the sample mean and sample standard deviation.
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