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The use of the ratio li /tr(XTX) as the proportion of total variance accounted for by the ith sample PC has the defect that it lies in the half-closed interval 1≥li ≥0. Show that the statistic
lies in the interval 1≥v≥0 where s2m , is the largest diagonal element of XTX (Klock and Bannink, 1962).
a manufacturer of industrial solvent guarantees its customers that each drum of solvent they ship out contains at least
If the company loses contract A, the probability winning contract B decrease to .2. Find the probability of the following events. Winning both contracts
A senior accounting major at Midsouth State University has job offers from four CPA firms. To explore the offers further, she asked a sample of recent trainees how many months each worked for the firm before receiving a raise in salary.
Use a 0.05 level of significance (? =.05) to determine whether or not the percentage of Atlanta CEOs who have advanced degrees is significantly less than the national percentage.
seventy-eight percent of the light aircraft that disappear while in flight in a certain country are subsequently
For a randomly selected woman, find the probability that her sitting eye height is less than 700 mm. The probability that a woman's sitting eye height is less than 700mm is .1190.
A new procedure is being tested for the assembly of electronic circuit boards. For each of five employees, the time required to assemble a board is measured for both the current procedure and the method that has been proposed.
The gym has developed the regression model to forecast demand for trainers Demand = 185 + (.15*advertising expenditures)-(.05*doughnuts) + (.23*swim gear sales)
Two points are chosen uniformly and independently on the perimeter of a circle of radius 1. This divides the perimeter into two pieces. Determine the expected value of the length of the shorter piece.
senior management of a consulting services firm is concerned about a growing decline in the firms weekly number of
In a goodness-of-fit test where the sample size is 200, there are 5 categories, and the significant level in .05. The critical value of X2 is.
farmers insurance group would like to test the hypothesis that the average number of miles driven per month by a male
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