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In 1993, Forbes Magazine identified what it considered to be America's 60 best small companies, and published the ages and salaries of their CEOs. The data are in the dataset ceodata on the companion website. The annual salaries (in thousands of dollars) for 59 of these CEOs are in the dataset along with the ages.
a. Plot Salary versus Age.
b. Compute the correlation coefficient and r2.
c. Characterize the relationship between annual salary and age. What is the pattern of the relationship? How strong is the association?
Could this information be viewed as representing the nominal scale of measurement? If so, explain your reasoning. If not, why not?
A fast food arrives at a fast drive through rest restaurant 6 minutes after it opens and then the arrival times for the next four customers in order are 3minutes, 8 minutes, 2 minute, and 5minutes.
Make sure your answers are as complete as possible and show your work/argument. In particular, when there are calculations involved, you should show how you come up with your answers with critical work and/or necessary steps.
a sample of 210 bell computers has 56 defectives. theory suggests that a third of all bell computers should be
wall street securities firms paid out record year-end bonuses of 125500 per employee for 2005 fortune february 6 2006.
Research shows that the life time of Everlast automobile tires is normally distributed with a mean value of 70,000 miles. What is the probability of having a tire that lasts more than 80,000 miles.
a population consists of the following five values 13 14 19 21 and 23.a. list all samples of size 3 and compute the
Captopril is a drug designed to lower systolic blood pressure. When subjects were tested with this drug, their systolic blood pressure readings (in mm of mercury) were measured before and after the drug were taken, with the results given in the ta..
Would the university be correct in thinking that $75,000 was a good approximation to the average salary level of all of its graduates? Explain the reasoning behind your answer.
Run a regression analysis of the data and determine whether there is a linear relationship between inflation and total return on stocks for the periods under study.
a statistician selected a sample of 16 accounts receivable and determined the mean of the sample to be 5000 with a
An experiment is conducted on the effect of age (5 yr, 10 yr and 15 yr) and treatment condition experimental versus control) on reading speed. Which Statistical term (main effect, simple effect, interaction, specific comparison) applies to each ..
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