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A company is researching the effectiveness of a new website design to decrease the time to access a website. Five website users were randomly selected, and their times (in seconds) to access the website with the old and new designs were recorded. To compare the times, they computed (new website design time - old website design time). The results follow.
For a 0.01 significance level, what is the decision regarding the hypothesis that the training was effective in improving customer relationships?
A. Reject the null hypothesis and conclude that the new design reduced mean access times.
B. Reject the null hypothesis and conclude that the new design did not reduce mean access times.
C. Fail to reject the null hypothesis.
D. Fail to reject the null hypothesis and conclude that the mean access times are inaccurate.
a 3ft high and 5 ft width rectangular plate is submerged vertically in water so that the top is 2 ft below the surface. express the hydrostatic force against one side of the plate as an integral and evalute it.
what is the probability that all will make a purchase and evaluate the probability that a light bulb will burn out in less than 1000 hours.
Find the accumulated amount A if the principal P is invested at the interest rate of r/year for t years.
If for a certain normal random variable X, P (X 650) = 0.0227, ?nd the standard deviation of X.
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The buyer of women's gloves currently has an average inventory of $20500, with an annual turnover rate of 4.0. Because this rate of stock turn is below the industry average, a 7.82% increase in turnover is sought.
applications of exponential function principal rate time.nbspnbspnbspnbspnbspnbspa fax machine is purchased for
A Norman window has the shape of a semicircle atop a rectangle so that the diameter of the semicircle is equal to the width of the rectangle. What is the area of the largest possible Norman window with a perimeter of 25 feet?
Donny is going to grill hot dogs for his family and friends.The hot dogs buns are sold in packages of 8.The hot dog weenies are sold in packages of 10.Donny doesn't want any extra buns or weenies. Which set of numbers will give him the correct num..
Describe specifically how you will use the technology to create the computer-based simulation model.
A poll of 69 students found that 24% were in favor of raising tution to build a new math building. The standard deviation of this poll is 4%. What would be the standard deviation if the sample size were increased from 69 to 205?
A manufacturing cell claims they make 500 parts per day. D etermine if their claim is correct.
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