Entries by Mary

Case Study

Case Study. Background In 1995, Global Oil Corporation’s Marketing and Refining (M&R) Division was the fifth largest U.S. refiner with 7,700 Global-branded service stations selling about 23 million gallons per day, or 7 percent of the nation’s gasoline. All the service stations are company owned. In 1990, M&R ranked last among its peers in profitability […]

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December 12, 2019 by

Deliverable 2 – Tutoring on the Normal Distribution

Deliverable 2 – Tutoring on the Normal Distribution. Competency Demonstrate the use of the normal distribution, the standard normal distribution, and the central limit theorem for calculating areas under the normal curve and exploring these concepts in real life applications. Instructions Frank has only had a brief introduction to statistics when he was in high […]

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December 11, 2019 by

Deliverable 3 – Confidence Intervals

Deliverable 3 – Confidence Intervals. Competency Given a real-life application, develop a confidence interval for a population parameter and its interpretation. Instructions Scenario (Information repeated for deliverable 01, 03, and 04) A major client of your company is interested in the salary  distributions of jobs in the state of Minnesota that range from $30,000  to […]

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December 11, 2019 by

Deliverable 4 – Hypothesis Tests

Deliverable 4 – Hypothesis Tests. Competency Given a real-life application, develop a hypothesis test for a population parameter and its interpretation. Instructions Scenario (Information repeated for deliverable 01, 03, and 04) A major client of your company is interested in the salary  distributions of jobs in the state of Minnesota that range from $30,000  to […]

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December 11, 2019 by