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Discuss what satisfying assumption 1-3 for regression inferences by the variables under consideration would mean. An article examined the relationship between investments in mutal fund portfolios and their associated tax efficiencies. The following table shows percentage of investments in energy securities (x) and tax efficiency (y) for 10 mutal fund portfolios.
X=3.1, 3.2, 3.7, 4.3, 4.0, 5.5, 6.7, 7.4, 7.4, 10.6.
Y=98.1, 94.7, 92.0, 89.8, 87.5, 85.0, 82.0, 77.8, 72.1, 53.5.
reduce each of the following expressions into simplest form by application of the rules of summationsumi15 xi2c sumj13
What is the sampling distribution of sample means? What is the mean of the sampling distribution of sample means?
How would the results of this survey be used in the workplace? Briefly describe correlational research. Name a variable from this study and one from the workplace that might prove to provide a correlational relationship.
test results from an electronic circuit board indicate that 50 of board failures are caused by assembly defects 30 are
A regression of height (X, in inches) on hourly earnings (Y, in dollars), yields the following results: What is the value of b1 in the regression Y = b0 + b1X?
From the past experience he knows that he population standard deviation is three days in testing to determine his blief he could use one of the following plans n=100 a=.01 n=75, a=.o5 n=50, a=.10.
Determine the following:Mean, Median and Variance.
Why do you use the chi-square statistic? What type of data is used with chi square analysis?
You have 4 groups that you are trying to find if there is a difference in any of the population means. In each group there are 7 observations. The given level of significance is an alpha of .005. Your MSA is 6,200 and your MSW is 1,000. Will you r..
question consider the following tableynbspnbspnbspnbspnbspnbsp 0nbspnbspnbspnbspnbspnbspnbspnbsp
A sample of 200 college students resulted in the numbers below. At "alpha" = 0.05, can we conclude that opinions of college students differ from those in the national survey of adults?
Would the null hypothesis that the 2007 median household income was $50,000 be rejected at the 10% significance level in favor of the two-sided alternative? (Choose the correct answer)
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