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On a correlation matrix, you will usually see two values per comparison. The top value for a correlation measurement will be the Pearson correlation, right under that you will see a p-value. I understand when you have a Pearson correlation above, say, 0.5, you can start getting into issues of multicollinearity. I don't quite understand what the significance of the p-value beneath it is, if any?
Given that the student gets the correct answer to this question chosen at random, what is the probability that he actually knew the answer?
Formulate and solve linear program for determining how many copies should be assigned to each printing firm to minimize the total cost of obtaining 75,000 acceptable-quality reports?
An urn contains w white chips, b black chips, and r red chips. The chips are drawn out at random, one at a time, with replacement. What is the probability that a white appears before a red?
This activity used 90% confidence intervals because it is easy computationally to find the bottom 5% and the top 5% of a distribution.
Suppose that the population standard deviations are known to be six and three, respectively. Conduct a hypothesis test to evaluate the manufacturers claim.
Water quality. An environmentalist group collects a liter of water from each of 45 random locations along a stream and measures the amount of dissolved oxygen.
Suppose a person within the last year claimed to have bought Google stock at closing at $362.50 per share. What is the probability that the stock closed at $362.50 or less on a randomly selected business day
A rule for allocating the use of the water between the two states is desired. Study the following rule using both probability models:
Laura wanted to build a multiple regression model based on advertising expenditures and coffee times price index. Based on the selection of all normal values she obtained the following:
An independent testing services road-tested 36 of the automobiles.
What is the predicted values of the fund in the period t = 1? What is the predicted value of the fund in the period 3, and period 7?
1.a newspaper conducted a statewide survey concerning the 2000 race for state senator. the newspaper took a random
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