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Assignment 1: Discussion
You are working with a company selling building material to builders. You predict the quarterly purchases of customers based on their current purchases by using a linear regression model. These predictions, however, are not very accurate. Discuss at least three reasons why these predictions may not be accurate and offer three ways in which you can increase the likelihood of accurately predicting your customers' purchases.
Assignment 2: Controls
As a quality analyst you are also responsible for controlling the weight of a box of cereal. The Operations Manager asks you to identify the ways in which statistical quality control methods can be applied to the weights of the boxes. Provide your recommendations to the Operations Manager in a two-three page report.
Your report should indicate the following along with valid justifications of your answers:
What equation will generate the number of tiles for a height of n? Use the diagrams (you can expand them) and the table to show how you arrived at your equation.
consider the following lpmaximize z4x15x23x3subject tox1x24x3le6x12x2x3le7x14x22x3le12a add slack variables x4 x5 and
For problem below, state the null and the alternative hypothesis, determine a critical value, present a test statistic, and provide a p-value and your decision. Use
Assuming population variances are equal; construct an appropriate 95% confidence interval for the difference in mean Gestation Age between infants born in Hospital B and Hospital C.
a. If the two products are introduced to the market, what is the probability that both are failures? b. What is the probability that first or the second products are failures? c. What is the probability that neither is a failure?
What is the probability that an employee's pay is $12.88 per hour?
A research analyst for an oil company wants to develop a model to predict miles per gallon based on highway speed. An experiment is designed in which a test car is driven at speeds ranging from 10 miles per hour to 75 miles per hour. The results ar..
1. let a 1 2 3 n.a how many relations on a are both symmetric and antisymmetric?b if r is a relation on a that is
Considering the variables and design that you described in the first discussion question 3, above what information would a one-way MANOVA provide you? What more would you want to know if you get significant results in the MANOVA? Why would this be..
The vast majority of the world uses a 95% confidence in building confidence intervals. Give your opinion on why 95% confidence is so commonplace. Justify your response.
The Hartley-Davis motorcycle dealer in the Minneapolis- St. Paul area wants to be able to forecast accurately the demand for the Roadhog Super motorcycle during the next month. From sales records, the dealer has accumulated the data in the followi..
Suppose there are two types of movie: Arty (A), and Popcorn (P). These films may be either Decent (D) or Terrible (T). 35% of all movies are Arty. 20% of all movies are both Arty and Decent. If a film is Popcorn, there is a 75% chance that it is T..
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