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Engine Production Time Worksheet

Engine Production Time Worksheet

Description

Assignment #8

Part A. In reviewing the data in the Performance Lawn Equipment database (worksheet Defects after Delivery), we noticed that in 2014 and 2015 PLE experienced some quality problems due to an increasing number of defects in materials received from suppliers. But after the quality improvement initiative conducted in August 2015, defects received from suppliers have decreased. Plot the data using a scatter chart and then use a linear function to model the relationships between month and the rate of defects before and after August 2015 (two charts). I have already separated the data for you. Interpret the results.

Part B. PLE’s human resource director has a concern about the high rate of turnover in its field service staff. We want to identify the characteristics of individuals that lead to greater retention. Use the data in the worksheet Employee Retention and conduct a statistical study to determine the effect that “years of education”, “colege grade point average”, “age”, “gender”, College Grad”, and “local” have on “retention” (yearsPLE). A sample of 40 field service engineers was selected to determine the influence of these variables on how long each individual stayed with the company. Evaluate the full regression model, then use systematic model building approach to identify the best model.

(Simply run the regression models, no need to check the regression assumptions and multicollinearity for this assignment.)

Part C. As part of its efforts to remain competitive, PLE tries to keep up with the latest in production technology. The lawn mower division spends a great deal of effort in testing new technology. One example is the production of a new design for lawn mower engines. To determine the time required to produce these engines, PLE produced 50 units on its production line. Test results are recorded on the worksheet Engines in the database. Create a scatter chart then use Excel trendline tool to find the function that is best fit to the data.

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Our Service Charter

1. Professional & Expert Writers: Writing Expert only hires the best. Our writers are specially selected and recruited, after which they undergo further training to perfect their skills for specialization purposes. Moreover, our writers are holders of masters and Ph.D. degrees. They have impressive academic records, besides being native English speakers.

2. Top Quality Papers: Our customers are always guaranteed papers that exceed their expectations. All our writers have +5 years of experience. This implies that all papers are written by individuals who are experts in their fields. In addition, the quality team reviews all the papers before sending them to the customers.

3. Plagiarism-Free Papers: All papers provided by Writing Expert are written from scratch. Appropriate referencing and citation of key information are followed. Plagiarism checkers are used by the Quality assurance team and our editors just to double-check that there are no instances of plagiarism.

4. Timely Delivery: Time wasted is equivalent to a failed dedication and commitment. Writing Expert is known for timely delivery of any pending customer orders. Customers are well informed of the progress of their papers to ensure they keep track of what the writer is providing before the final draft is sent for grading.

5. Affordable Prices: Our prices are fairly structured to fit all groups. Any customer willing to place their assignments with us can do so at very affordable prices. In addition, our customers enjoy regular discounts and bonuses.

6. 24/7 Customer Support: At Writing Expert, we have put in place a team of experts who answer all customer inquiries promptly. The best part is the ever-availability of the team. Customers can make inquiries anytime.