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Suppose we have run a regression on 48 months of data and the regression equation is Y = 50000 + 1000*x (where x is the month number).
What is the annual trend? Play with some numbers to convince yourself of your answer.
Would this be 12000, why or why not? Please help!
What is the expected number of crimes that will be solved? What is the standard deviation?
To evaluate average annual expenses of students on books and class materials sample size 36 is taken.
The histograms of some sampling distributions are symmetrical. T-F What would make a histogram symmetrical, and give an example of a symmetrical distribution? A random sample of size 36 is to be selected from a population that has a mean μ = 50 an..
Determine probability, P(Z
Compute the appropriate test statistic to test Ho: p = 80/100 vs. Ha: p > 80/100.
Statewide real estate sales agency, Farm Associates, specializes in selling farm property in state of Nebraska. At.10 significance level, has there been an increase in selling time?
Statistical Hypothesis testing - Frequency distribution
What is coefficient of determination? Calculate F statistic. (Hint: You must complete the table to answer the question.)
Drug manufacturer knows that for a certain antibiotics, the average number of doses ordered for a patient is 20. Steve Simmons, a salesman for the company
Select the level of significance, and determine critical, ZCR value.
Estimated the probability that among 75 randomly selected students, at least 20 of them score greater than 78.
Given that the mean of all 102 atomic numbers is 51.794, and the population standard deviation is 29.804, what is the probability that the mean of the 40 atomic numbers selected by the student will be at least 57.3?
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