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Question: The following set of data is from a sample of n = 7:
12 7 4 9 0 7 3
a. Compute the mean, median, and mode.
b. Compute the range, interquartile range, variance, standard deviation, and coefficient of variation.
c. Compute the Z scores. Are there any outliers?
d. Describe the shape of the data set.
A study is conducted in order to determine the relationship between estrogen therapy and heart attack. Compute the cumulative incidence of heart attack in women who do take estrogen? Round to three decimal places
a marketing firm asked a random set of married and single men as to how much they were willing to spend for a vacation.
Describe the following features of the Constitution: (a) compromises between the large and small states and between North and South
Go to the Statistics: Concepts and Controversies Web site, www .whfreeman.com/scc7e, and look at the Correlation and Regression applet.
Assume that the population proportion is .55. Compute the standard error of the proportion,(), for sample sizes of 100, 200, 500, and 1000 (to 4 decimals).
you are picking a bouquet of 20 flowers for your mother at random from a garden with 25 conflowers 35 daisies and 42
assume that the average full time college student in the u.s. requires a total of 10500 per year to cover the costs of
Evaluate your histograms for any outliers in your data. Based on your evaluation of outliers, you may trim no more than 1% of the data contained in the data set. This must be done symmetrically (i.e., trimming no more than 0.5% off the top and 0.5..
What is the null hypothesis? What is your decision if a = 0.01?
question 1new spark plugs have just been installed in a small airplane with a four-cylinder engine. there is one spark
Choose any of the Roman emperors, and write a biographical sketch explaining what you see as his most notable actions and character traits that impacted Western civilization.
His assistant thinks the standard deviation is less than three feet. If the instructor were to conduct a test, what would the null and alternative hypotheses be
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