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Conduct a hypothesis test analysis to determine if there is a statistical difference between the ages of the sexes in the group. State what you are testing. Write the hypotheses. Show the relevant numbers. Then explain your results. Use alpha = .05. 2) This week you will analyze if women drink more sodas than men. For the purposes of this DQ, assume that in the past there has been no difference. However, you have seen lots of women drinking sodas the past few months. You will perform a hypothesis test to determine if women now drink more sodas than men. State what you are testing. Write the hypotheses. Show the relevant numbers. Then explain your results. Use alpha = .05.
Use the Excel Analysis ToolPak to find the linear correlation coefficient for the systolic and diastolic measurements.
A screening test for a newly discovered disease is being evaluated. In order to determine the effectiveness of the new test, it was administered to 900 workers; 150 of the individuals diagnosed with the disease tested positive.
Construct a 88% confidence interval for the mean femininity score of all male hotel managers and estimate the percent change amongst lactating mothers to within ± 0.5% with 99% confidence. How large a sample of nursing mothers do you need?
Calculate the total tax bill for both low and high income individuals in both countries and fill in the table above with your results and what is the unemployment rate
Consider the situations and comment on whether the sample results might cause concern about the quality of the process.
What is the majority of the type of data summarized on the first page of this article and Measurement or categorical - What population value should be used with data? population mean or population proportion
What type of variables you have. Qualitative or Quantitative and indicate what type of measurement scale is being used.
Management wishes to schedule workers with specific projects that minimizes total cost and gets all projects done, what would that minimized cost be and Part 1b Which project should be assigned to which worker for minimizing the total cost?
Can the company rely on the fact that the strength of the chemical is identical from batch to batch and from barrel to barrel and what is the mean strength of the chemical in these stored barrels? How prccisc is that estimate?
Find the equation of the regression line for the given data. What is the predicted value of Y when X = -2? What is the predicted value of Y and find the correlation coefficient between X and Y. Is there a weak or strong, positive or negative corr..
What would be the appropriate statistical procedure to test the following hypothesis: "Triglyceride values are a good predictor of weight in obese adults." What are the functions of parametric statistical procedures?
How many free premium channels should the research director recommend for inclusion in the 3-For-All service ?
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