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It randomly samples 100 of its alumni. The mean annual income was $59,000 with a standard deviation of $1,600. Find a 95% confidence interval for the true mean annual income of the nursing school alumni. Write a statement about the confidence level and the interval you find.
Find the dimensions of a rectangle with area 125000 m2 whose perimeter is as small as possible. (Give your answers in increasing order, to the nearest meter.)
Find the best predicted value of y corresponding to the given value of x. The regression equation relating attitude rating (x) and job performance rating (y) for the employees of a company is hat(y)=11.7+1.02x. Ten pairs of data were used to obtai..
the fence around a rectangular piece of property is 156 m long. if the area of the property is 1505 meters squared, find the dimensions of the property.
Find coordinate of centroid using multiple integral method -Determine the z-coordinate of the centroid of G.
Utilize the table below to evaluate the various credit card offers. It is possible that not all information is available for all cards.
Justin travels 30 miles at a rate of 65 mi/hr to get to work each day. About how long does the drive take?
Mr. Rich invested $14,000, part at 8% and the rest at 6%. If the annual incomes from both investments were equal, find the amount he invested at each rate.
Problem on correlation coefficient
Approximate the derivative of y=x^3 at x=2 by assuming delta x = 0.001 and determining the corresponding change delta y. Compare the approximate value with the exact value.
Telephone rate. A second long-distance telephone service charges $0.09 per minute or fraction thereof for calls lasting 10 minutes or more and $0.18 per minute or fraction thereof for calls lasting less than 10 minutes.
A recent study reported that college students study for an average of four hours per day. You believe this figure is too large & you decide to conduct your own test. Find the p value & explain its meaning.
The tank has height 7 m and the diameter at the top is 6 m. If the water level is rising at a rate of 18 cm/min when the height of the water is 2.5 m, find the rate at which water is being pumped into the tank.
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