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Refer to the Buena School District bus data. Prepare a report on the maintenance cost for last month. Be sure to answer the following questions in your report.
a. Around what values do the data tend to cluster? Specifically what was the mean main- tenance cost last month? What is the median cost? Is one measure more represen- tative of the typical cost than the others?
b. What is the range of maintenance costs? What is the standard deviation? About 95 percent of the maintenance costs are between what two values?
Produce the scatter plot for sodium and bp. Do you think there are any outliers?
a laboratory blood test is 95 percent effective in detecting a certain disease when it is in fact present. however the
a psychologist is interested in the mean iq score of a given group of children. it is known that the iq scores of the
Among the variables high school percentile, ACT English score, ACT math score, and ACT composite score, identify the one that appears to be the best predictor of cumulative GPA. Explain your reasoning.
Determine the median, and the standard deviation. Determine the coefficient of skewness using Pearson's method. Listed below are the commissions earned ($000) last year by the sales representatives at the Furniture Patch, Inc.
the average flight from point a to point b takes 100 minutes with a standard deviation of 10 minutes.a. what is the
"MagTek" electronics has developed a smart phone that does things that no other phone yet released into the market-place will do. The marketing department is planning to demonstrate this new phone to a group of potential customers, but is worried abo..
below are the intervals from primary aids diagnosis until death for a sample of 12 hemophiliac patients at most 40
A psycologist wants to research whether wearing cologne helps men attract women. What would be null hypothesis in this sturday and what would be the research hypothesis?
The weight of the oranges, in pounds (1 pound = 16 ounces) is a random variable with standard deviation
specifically 68 of gen y people have a say in computer purchases. suppose you select a sample of 100 gen y
What maximum variance of the raw score population could you have and still be able to reject the null hypothesis of μ = 20 (α = .05), if the sample size is 100 and the sample mean is 22?
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