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Many chief executives have been under serious criticism from organized labor for the fat paychecks that they take home. An experiment was set up in which 15 observations were taken on the variables: Y = chief executives' pay (in thousands of dollars), X1 = firm's net profit (in millions of dollars), and X2 = number of employees (in thousands). Using excel, the following sample statistics were obtained: b1 = 0.1336, sb1 = 0.0424, b2 = -0.86, sb2 = 0.39.
a) Given that X2 is in the model, does X1 contribute to predicting the dependent variable at the .05 significance level?
b) Given that X1 is in the model, does X2 contribute to predicting the dependent variable at the .05 significance level?
where tower A is due west of tower B. A fire is spotted from the towers, and the bearings from A and B are N 76 degrees E and N 56 degrees W, respectively. Find the distance d of the fire from the line segment AB.
A particular spell has a .18 (i.e. 18%) chance to do critical damage. What is the probability that a spell can be cast 10 times in a row without doing critical damage? What is the probability of the sum of two dice equaling an odd number?
If an open box has a square base and a volume of 105 in.3 and is constructed from a tin sheet, find the dimensions of the box, assuming a minimum amount of material is used in its construction.
Given the following probability distribution for asset Y, compute the expected rate of return, variance, standard deviation, and coefficient of variation for the assets.
applications of exponential function principal rate time.nbspnbspnbspnbspnbspnbspa fax machine is purchased for
how do you calculate the burial cloth of an egyptian mummy is estimated to contain 59% of carbon-14 it contained originally. how long ago was the mummy buried? the half life of carbon-14 is 5730.
A drop of oil measuring 0.12 cubic centimeters is spilled onto a lake. The oil spreads out into a circular shape having a diameter of 23 centimeters. Approximate the thickness of the oil film.
1. show using algebra that the formula for a circle is a special case of the formula for an ellipse.2. show using
A poster is to have an area of 240 in2 with 1 inch margins at the bottom and sides and a 7 inch margin at the top. What dimensions will give the largest printed area? (Give your answers correct to one decimal place.)
write each of the following expressions in correctly parenthesized text using one line also called calculator notation
Using the table of information for differentiable functions f(x) and g(x) at x = 2 and x=3, determine the derivative below.
Calculate the mean of each sample
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