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ANOVA is a powerful statistical test. How does ANOVA differ from other parametric tests? What are the conditions that must be met to use a one-way ANOVA? Identify a business related research question where ANOVA would be the appropriate test for significance. What would the results tell you? What would they fail to tell you? What would be the next step?
Sample data recently collected indicate that Dough Boy's crusts average 30 centimeter in diameter, with a standard deviation of 1.1 centimeters.
Consider the following estimated regression equation, based on 10 observations.
Determine the probability that between 5 and 10 minutes will pass between successive occurrences.
Apply Scheduling Theory in order to optimize a schedule of events and reduce lost productivity
Please share 3 real world examples of problems, which occurred due to the use of secondary data. Be specific about the consequences as well the secondary data used. You may use your own organization or research the net or literature for this one.
A random sample of 200 people was taken. Sixty percent of the people favor President Obama. The 95% confidence interval for the true population of people who favor Obama is?
Engineers want to design seats in commercial aircraft so that they are wide enough to fit 98% of all males. (Accommodating 100% of males would require very wide seats that would be too expensive.)
Find a 95% confidence interval for the percentage of girls and women in Taiwan who had antibodies at that time.
A salesperson makes four calls per day. A sample of 100 days gives the following frequencies of sales volumes.
Illustrate by computation that, for straight -line regression of Y on x, β1= 0.
Comment on your statistical findings? Do you agree with your initial statement regarding the preference of an ANOVA over a t-test when examining more than two groups?
Write a brief summary of the distribution of life expectancy.
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