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A company studying the productivity of its employees on a new information system was interested in determining if the age (X) of data entry operators influenced the number of completed entries made per hour (Y). The regression equation is yˆ = 14.374 - 0.145x . If sx=14.04 and sy=2.61, then the correlation coefficient between age and productivity is: A. 0.779 B. -0.236 C. 0.575 D. -0.929 E. -0.779
Do the independent variables correlate statistically significantly and practicallywith the dependent variable and is collinearity between the independent variables a concern?
Create the second data set by inserting eight data points all very close to 10 on the number line and record the standard deviation of this data set, and then delete that data set.
What is the unregulated competitive equilibrium and what is the social optimum specific tax (per unit of output of gunk) results in the social optimum
1. a university has been tracking the percentage of alumni giving to its annual fund each for the past 10 years. the
The following data represent the monthly service fee in dollars if a customer's account falls below the minimum required $1,500 balance for a sample of 26 banks
What is the conclusion you can draw regarding research question that was posed in this research - would you now move on to interpret the results of the Tests of Between-Subjects Tests?
What is the value of the test statistic and the chi-square table, the most accurate statement that can be made about the p-value
How many people were polled?
A dean of college of business in the Midwest claims
a study was conducted to determine the impact of social media use on student learning. a total of 103 students taking a
Compute the single-sample z-test to see if caffeine reduces dreamtime. Test the null hypothesis at the .05 level of significance.
allelectronics caries 1000 products p1 . p1000. consider customers ada bob and cathy such that ada and bob purchase
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