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A researcher wants to predict graduate-school grade point average (GPA) from GRE verbal scores (which is what the pesky GRE is supposed to do, anyway!). She gathers data on fifty graduate students. Below are the data "high points":Independent (predictor) variable X = GRE verbal score Mean = 520 Standard Deviation = 90Dependent (criterion) variable Y = GPAMean = 3.30 Standard Deviation = 0.88 r = .50 (correlation between GRE verbal and GPA)
A. Given a score of 580 on the GRE verbal test, what GPA would you predict?B. Calculate the standard error for the predicted GPA for 1A.
At one place in your math textbook, the product of the page numbers on facing pages is 462. What are the page numbers?
1.If a publisher of nontechnical books takes great pains to ensure that its books are free of typographical errors, so that the probability of any given page containing at least one such error is .005 and errors are independent from page to page, wha..
In your industrial oven, you bake two baking sheets with 15 scones each, two baking sheets with 14 cookies each, and one baking sheet with 8 scones and 12 cookies.
Suppose CUNY professors have an average life, normally distributed, of 80 years with a population standard deviation of 9 years.
Two tracking stations are on the equator 148 miles apart. A weather balloon is located on a bearing of N 32°E from the western station and on a bearing of N 20°E from the eastern station. How far is the balloon from the western station? Round to t..
World grain demand. Freeport McMoRan projects that in 2010 world grain supply will be 1.8 trillion metric tons and the supply will be only 3/4 of world grain demand.
the volume of a rectangular prism is 208 cm2. if the area of one end is 16cm2, what is the length of the prism.
Use the += operator to increase the scoreCount and scoreTotal variables. Then test this to makes sure it works.
a metal sculptor has a solid bronze sphere with a radius of 10 inches. She melts the sphere and casts a hollow sphere with an inner radius of 10 inches. What is the thickness of the shell of the hollow sphere?
A drug company is measuring levels of oxygenation in patients after receiving a test medication. As the researcher, you are interested in whether Group I, which received the medication, has the same oxygenation levels as Group II
Question 1: A firm owns two manufacturing facilities that mamufacture the same item .The functions of the income are : P1= 8.5+ 0.03(x^2) and P2= 5.2+0.04(y^2) where x and y are the quantities produced by each facility .The relation between the selli..
A man ordered 3 times a many boxes of ballpoint pens as boxes of felt-tip pens. Ballpoint pens cost $4.37 per box. Felt-tip cost $3.44 per box. Total cost is $82.75. How many boxes of each type of pen did he buy?
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