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A statewide real estate agency, Farm Associates, specializes in selling farm property in the state of Nebraska. Its records indicate that the mean selling time of farm property is 90 days. Because of recent drought conditions, the agency believes that the mean selling time is now greater than 90 days. A statewide survey of 100 farms sold recently revealed that the mean selling time was 94 days, with a standard deviation of 22 days. At the .10 significance level, has there been an increase in the selling time? Please show all your steps in deriving the final answer.
Critically discuss some examples of literature reviews and statistics used and available at your work place or organization? What are they used for and how are they determined?
Test the claim that the mean body mass index (BMI) of men is equal to the mean BMI of women. Use the data to the right to test this claim.
Construct a 95% confidence interval estimate for the population proportion of adults who report that e-mails are easy to misinterpret.
eighteen percent 0.18 of the students in a management class are graduate students. a random sample of 6 students is
suppose that airplane engines operate independently and fail with probability equal to 0.4. assuming that a plane makes
From this group of 2000 accounts what is the probability that an account has a balance of $500 or more, given that it is 3 or more years old?
a power company is considering damming a river that has a steady flow rate of 175 m3s. at the location where the dam
without regard to order in how many way can you select four individuals from a group of seven? please show
Suppose the population standard deviation is a=25. (The a is actually the funny looking 0 with the line that goes from the top right up at an angle) Compute the standard error of the mean
State the null and alternate hypotheses, the decision rule, find the test statistic, state your decision, and estimate the P value for the following:
What is the predicted blood pressure for an average 17 year old as estimated from the regression line? And the standard error of the estimate for a 17year old ?
test scores have a stadard deviation of 18 and a mean of 69. if at random 49 test scores are picked what is the
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