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Discuss possible study designs. Which of the designs would we use to test our research hypothesis? What other designs we also employ for this purpose? What would be the potential for bias in the design/s we would use to test our hypothesis? After considering potential designs, state what the most appropriate design is. The following components must fit this particular design: sampling, variables, analysis, and limitations.
If one person is selected at random, what is the probability that person is Female?
Find out the variance for percentage of tickets? Determine the probability that your sample will have the average between 70 and 75?
Describe the sampling distribution of the sample proportion
Does this result support original claim, or is population percentage considerably less than 45%. Use alpha=.05 for level of significance.
Find the area under the normal distribution curve between z = 1.52 and z = 2.43.
Using What's Best! (Or solver) find the least-cost matrix.
Assuming that these are a random sample of all publicly traded companies, construct a 95% confidence interval for the overall noncompliance proportion.
Write the null and alternative hypotheses you would use to test the following situation.
Compute the sample variance and sample standard deviation as a measure of volatility of monthly total return for Chevron (to 2 decimals): Sample variance and Sample standard deviation.
In addition, record the values for the UCL, center line, and LCL. Also, record any points that are out of control. Use a z-value of three.
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
Determine the probability that we would reject null hypothesis given that it is true?
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