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A realtor took a random sample of records of sales of homes from the files maintained by the Albuquerque Board of Realtors. From this sample he recorded the amount paid in real estate taxes (in dollars), and the sales price of the home (in thousands of dollars). From this information the following output was created.
Using the 0.10 level of significance, is there evidence that the population mean is above $300?
The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Assume a sample of 60 Americans is taken to further investigate viewing habits. Suppose the population standard deviation for weekly viewing time is Q = 4..
What is the probability that a cereal would be high calorie, given that is low fiber? In other words, what is P (high calorie, given low fiber)?
Keith's florist has 18 delivery trucks used mainly to deliver flowers in the SC area. Of these 18 trucks, 5 have brake problems. A sample of 4 trucks is randomly selected. What is the probability that 2 of those defective have defective braked. Ro..
Sketch density curves that might explain distributions with fallowing shapes: symmetric, but with two peaks( i.e., two strong clusters of observations)
A process has a capability index of 0.40. This index is interpreted to mean that the process is:
Find out sample standard deviation (s) of scores Gordon Golfer made on his last four rounds (determine to the nearest one tenth, or .1).
What is the probability that the next 100 customers will spend an average of less than $56 on dinner?
The Wilcoxon signed rank test is computed for the data and gives a value W + = 161.5. Using the Normal approximation (without the continuity correction) the P-value.
The area under the standard normal curve between 0 and 2 is twice the area under area between 0 and 1.
Mean=63.6 Standard deviation=2.5 If 36 data points are arbitrarily chosen, determine the probability that mean is less than 64.
What is the equation for this regression model?
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