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Here is data with y as the response variable.
Make a scatter plot of this data. Which point is an outlier?
Find the regression equation for the data set without the outlier.
Find the regression equation for the data set with the outlier.
Find the standard normal area for each of the following: (Round the answers to 4 decimal places.)
Explain why it makes sense for a set of data to have a correlation coefficient of zero when the data show a very definite pattern.
a regression equation was fit to a set of data for which the correlation r between x and y was 0.6. which of the
At the .05 significance level, is there a difference in the mean number of miles traveled per month between Cincinnati and Pittsburgh employees? Use the five-step hypothesis-testing procedure.
Jars have exactly the same number of red, orange, yellow, green, blue, and violet jelly beans. What is the maximum number of jars the factory can produce?
Do you use probability in your profession or real life? You most likely do. For example, chance of rain tomorrow is 27%. We hear similar probabilities in the media all the time.
A local politician in this town has stated that the average property taxes are $1800 and most people do not pay more than this amount. Conduct a test at the alpha = .01 level to determine if this is true. For this test, consider a sample size of 3..
1. using the percent passing developmental courses in shown in the table for your campus in fall 2009 what is the
Explain why you would choose these two? What did you learn about correlation and causation while completing the course? Differentiate between correlation and causation.
Find the sample space for the number of outcomes (you don't need to list the possible outcomes, just how many possible outcomes there are).
For a two-tailed test of hypothesis (.01 significance level) to determine if there is a difference in the population means, the degrees of freedom are
A real emergency situation is a rare event, with a probability 0.004. Given that the alarm has just sounded, what is the probability that a real emergency situation exists?
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