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Eric has computed that it takes an average (mean) of 17 minutes with a standard deviation of 3 minutes to drive from home, park the car, and walk to his job. One day it took Eric 21 minutes to get to work. You would use the formula for transforming a raw score in a sample into a z-score to determine how many standard deviations the raw score represents. Since his "score" is 21, you would subtract the mean of 17 from 21 and divide that result (4) by the standard deviation of 3. The z-score of 1.33 tells you that Eric's time to get to work is 1.33 standard deviations from the mean. Is the z value positive or negative? Explain why it should be positive or negative. Another day, it took Eric only 12 minutes to get to work. Using the same formula, determine the z value. Is it positive or negative? Explain why it should be positive or negative. On a different day, it took Eric 17 minutes to get from home to work. What is the z value? Why should you expect this result even before you did the calculation? Please explain the following four uses of z-scores, including how each relates to Eric’s trip between home and work: Interpret raw scores Compare different variables Compute relative frequency Describe sample means What is the relationship between z-scores and the standard normal curve?
High pressure steam at a rate of 450 kg/h which is at 3.5 MPa and 700°C is expanded in a turbine to produce work. Two exit streams are removed from the turbine. One of the streams is at 1.4 MPa and 200°C and has a flow rate equal to one third of the ..
In the 1950s and 1960s, the increased use of patrol cars by the police, combined with the professionalism movement, caused a great disconnect between the police and their constituents. It was thought, in order to decrease potential conflicts of inter..
A large air compressor has been temporarily located 175 feet away from a home which is also 100 feet away from a highway. The compressor noise is rated 61.2 dB(A) Leq at 50 feet, while the roadway noise was measured at 66.1 dB(A) Leq at 50 feet. Calc..
More and more leaders are enabling employees to accomplish more by empowering them to accomplish the tasks that are set in front of them.
Discuss the philosophical positives and negatives in relation to the government's role in social welfare. Include examples of social insurance and public assistance programs
What are the three different approaches used to schedule advertising, and under what conditions are they used? Describe/discuss the communication process of both traditional (mainstream) media and social media.
Aquinas states that if ethics asserts that something is “good,” then there must be a final cause (goodness) toward which all things strive. Absolute good is a concept most aligned to virtue ethics and its proclivity to “perfectionism” Divine command ..
Ethnocentrism is generally defined as viewing one's own culture as superior to all others. However, quite often, it is not quite that obvious. Whenever we encounter something that seems strange or different, we will feel some degree of discomfort. Ho..
Strategies utilized by children's services and educators to work efficiently with culturally diverse client and co-worker in children's services environment.
Trace the impulse, listing the steps in as much detail as possible, from which your brain sends the message to the appropriate muscles to lift a glass of water to drink.
What are the central beliefs of Islam, how are they reflected in the "Five Pillars"? Which of the Five Pillars do you feel would be the easiet to fulfill, and which would be the most challenging?
Students will submit the first section of a website plan communicating the site purpose, target audience, and content needs. This first section must also illustrate the site architecture to define the page content, file names, and relationships betwe..
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