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Find examples in the research that utilize the independent and dependent t-tests that are used to answer a question. Find the t value and its associated p value. Determine and evaluate the effect size and comment on the impact of proposed difference. Ask yourself and comment on your level of satisfaction with the "practical" significance of the findings.
If you have multiple regression output with 2 independent variables and R-Square is .9682, what does R-Square indicate?
Political polls typically sample randomly from the U.S population to investigate the percentage of voters who favor some candidate or issue. The number of people polled is usually on the order of 1000.
Drug manufacturer knows that for a certain antibiotics, the average number of doses ordered for a patient is 20. Steve Simmons, a salesman for the company
What are the predictor and response variables? Make a scatterplot of the data and find r to see if a linear pattern seems to exist. If it appears to have a linear relationship, find the regression line. Dont forget to state what r is, and interpret..
Their monitoring plan will take a random sample of 5 days sales per month and use the sample mean sales to identify shops that are under-performing. Establish the lower limit sales such that only 5% of the shops would have a sample sales mean belo..
expectation of the statistic that was proposed by Statistician - Based on the information collected in Tasks 1-8, which of the two statistics produces values which tends to be more concentrated about the expectation of the measurement?
Finding an X score. All Bright University will consider an applicant for its MBA program who scores 95 percent or higher on the GMAT exam. The mean and standard deviation, respectively, for this test are 578 and 94. What is the lowest score (X) th..
Explain why a strong correlation would be found between weekly sales of firewood and weekly sales of cough drops over a 1-year period. Does the strong correlation mean that one variable causes the other?
Assume that a 95% confidence interval estimate of the population mean annual starting salary is required. What is the planning value for the population standard deviation?
their average cost was 340.00 with standard deviation of 80.00. Dean of students thinks that costs are greater this semester. Determine the test value for this hypothesis.
Found to have SL concentration of 30ng/ml and sample variance 0.5ng/ml. Does this provide significant evidence that the SL level in maturing male salmon is greater than that of non-maturing male salmon?
If person is selected at random determine the probability that he/she has enzyme level less than 4.0 units/ml?
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