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Question: Imagine that you are trying to predict the price of gasoline (regular unleaded) and the price of natural gas for home heating during the next month. Assume you believe that the price of either will stay the same, go up by 5%, or go down by 5%. Assess the joint probabilities of these possibilities, that is, assess nine probabilities that sum to 1 and are "realistic." Do you believe it is easier to assess the marginal probabilities of one and the conditional probabilities of the other, or to assess the joint probabilities directly?
Determine the t values that form boundaries of critical region for two-tailed test with a = .05 for each of the given df values.
Consider a discrete-time wide sense stationary random processes whose autocorrelation function is of the form- Is the process ergodic in the mean?
When we are considering n objects taken r at a time, with r 1, why will the number of combinations be less than the number of permutations?
A financial company places adverts in three publications with probabilities of 0.2, 0.3 and 0.5 res. The probability that the company gets an enquiry from an advert in the first publication is .001
Suppose that a magnet high school includes grades 11 and 12, with half of the students in each grade.- Create a hypothetical table of 100 students for this situation. Use grade (junior, senior) as the row variable.
1.to assess the accuracy of a kitchen scale a standard weight known to weigh 1 gram is weighed a total of n times and
when a bus service reduces fares a particular trip from new york city to albany new york is very popular. a small bus
A data center contains 1000 computer servers. Each server has probability 0.003 of failing on a given day. What is the probability that exactly two servers fail? What is the probability that fewer than 998 servers function
question team sports inc. sells sporting goods to high schools and colleges via a nationally distributed catalogue.
A sample of 49 observations is taken from a normal population. The sample mean is 55 and the sample standard deviation is 10. Determine the 99% confidence interval for the population mean.
What is the Chi-square test? Where can you apply it? Please site an example of how it was used and the outcome of the test. I think this could help me better than the book, it is difficult to understand.
Examine the Levine's test for equality of variance. State the null (Ho) and alternate (Ha) hypotheses for Levine's test. Using the Levine's test results, circle the significance for the test for that hypothesis, and make decision on either rejecting..
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