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Consider you have completed a survey of employees working in a call center doing customer service for a major manufacturing company. You have found a Pearson r of -.66 between employees' ages and their scores on an employee engagement scale. Interpret this finding. Now, you also observed that there is a relationship between gender and employee engagement (chi-square was statistically significant at p<.05). How would you go about creating an analysis that incorporated both gender and age in predicting employee engagement? Note: Be sure to include in your discussion a comment about the difference between statistical significance and substantive (or meaningful) significance.
From the above function, it can be said that the expected yearly income of and find the multiple coefficient of determination
A pharmaceutical company conducted study to evaluate the effectiveness and safety of new inhaled form of insulin for treatment of diabetes. A group of 650 diabetics was given the drug twice a day, while another group of 650 diabetics was given an ..
Is there evidence to suggest that the training course helps out sales people?
Consider the following data for two independent random samples taken from two normal populations. What is the 90% confidence interval estimate of the difference between the two population means?
Draw a scatter diagram. Based on the scatter diagram, does there appear to be any relationship between the number assemblers and production? Explain.
Calculated the probability of observing a sample proportion of voters 0.55 or higher supporting the incumbent governor.
If, 20 patients improved, 7 declined, and 3 remained the same, assess whether or not patients undergoing this treatment are showing significant change from baseline to 3 months afterward. Report a p-value.
Assuming the nurses surveyed were a simple random sample from the population of all nurses in the United States, find the appropriate null hypothesis for these data
What is the probability that of the last 100 new juvenile delinquents put on probation, 30 or more will commit another crime?
The consequences of the central limit theorem is that if we end up averaging the measurements of a particular quantity, the distribution of an average tends on going toward a normal one?
Cheating Gas Pumps When testing gas pumps in Michigan for accuracy, fuel-quality enforcement specialists tested pumps and found that 1299 were not accurate (within 3.3 oz when 5 gal is pumped), and 5686 were accurate.
Start rolling dice until a particular number, say 3, is obtained, and keep track of how many rolls are necessary. Repeat 100 times. Then find the average.
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