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A manager wishes to find out whether there is a relationship between the number of radio ads aired per week and the amount of sales of a product. the data for the sample are shown below
No of ads X: 2 5 8 8 10 12Sales Y : 2 4 7 6 9 10
College Athletics: Graduation Rate. Women Athletes at the University of Colorado Boulder have a long term graduation rate of 67%. Over the past several years, a random sample of 38 women athletes at the school showed that 21 eventually graduated.
Jessica must finish two courses (much like myself), statistics and economics, in order to complete the requirements for a BA degree. All along she has maintained an 80% average.
What is the probability of this project being completed earlier than 19 days?
Briefly discuss probability distributions. What is a normal distribution? Please provide a written example of how 'understanding distribution' can be an asset for any business project.
Draw the scatter diagram. Does it appear that x and y are related? If so, how? Test to determine whether there is evidence of a linear relationship
A human resources director, on learning about the regression effect, decides to hire people who have been fired by their previous employer for poor performance.
Would Kruskal-Wallis be the suitable statistical procedure to test this Research Question (RQ)? Describe your answer. When would you use Chi-Square test rather than One-Way Anova?
Consider in you response how the concepts of a population (and its associated parameters) and the sample (and its associated estimates) fits into the discussion.
Create a mixed integer programming model for this problem.
From historical data, Harry's Car Wash estimates that dirty cars arrive at the rate of 10 per hour all day Saturday. With a crew working the wash line, Harry figures that cars can be cleaned at the rate of one every 5 minutes.
Provide a business example that you can apply regression to. State the null and alternative hypothesis using the appropriate phrasing for the type of regression chosen.
Chocolate chip cookies resulted in the following calorie amounts. At the a _ 0.01 level, is there sufficient evidence that the average calorie content is greater than 110 calories?
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