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A sample of 300 is taken and the sample mean is computed to be 7.65 and the sample standard deviation is 5. Assume the data is ratio level.
Compute the 95% confidence interval on the mean.
Compute the 3.9% confidence interval on the mean
Which confidence interval is more practical and useful in a business situation? Why?
Calculate the mean and the standard deviation of the total score?
an artist's canvas forms a golden rectangle. The longer side of the canvas is 33 inches. How long is the short rider? round to the nearest tenth of an inch.
Where x is the number of hours required by a skilled craftsperson and y is the number of hours required by a semi-skilled person. Find values of x and y that minimize the labor charge. Find the minimum labor charge.
Solve the following system of linear inequalities by graphing.
Show that for n less than or equal to 4, any Latin square of order n can be obtained from the multiplication table of a group by permuting rows, columns, and symbols.
Find the linear equation that relates value (V) in dollars to time (t) in years. What would be the value of the equipment after 6 years?
Sampling distribution of sample mean- key informaiton. What is the probability that the sample mean will be between 28 and 46?
An ATM personal identification number (PIN) consists of 4 digits. How many PIN's are possible?
A fair, six-sided dice is rolled two times. Let X1 and X2 denote the number of points showing on the ¯rst and second rolls, respectively. Let U = X1+X2 and V = X1¡X2.
The monthly charge for a waste collection service is 660 dollars for 100 kg of waste and 1050 dollars for 165 kg of waste.
Determine the control limits for the mean and range, and, how you would plot the control limits for the mean outside diameter and the range. Are there any points that are "out of control"?
A self-employed worker earned $47,000 during the year. The FICA tax for Social Security is 6.2% and the FICA tax for Medicare is 1.45%.
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