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Carry out a simulation experiment using a statistical computer package or other software to study the sampling distribution of x‾ when the population distribution is lognormal with E[ln(X)] = 3 and V[ln(X)] =
a. Consider the four sample sizes n = 10, 20, 30, and 50, and in each case use 500 replications.
For which of these sample sizes does the x‾ sampling distribution appear to be approximately normal?
Research the benefits and detriments of using ePrescribing for your patients.
The community water system will experience a noticeable drop in water pressure when the daily water consumption exceeds 984,000 gallons. What is the probability of experiencing such a drop in water pressure?
What have you learned about statistics - In developing your responses, consider - at a minimum - and discuss the application of each of the course elements in analyzing and making decisions about data
Critical Thinking
Several statistical tests have a way to measure effect size. What is this, and when might you want to use it in looking at results from these tests on job related data?
Explain each sampling technique discussed in the "Visual Learner: Statistics" in your own words, and give examples of when each technique would be appropriate.
A screening test for a newly discovered disease is being evaluated. In order to determine the effectiveness of the new test, it was administered to 900 workers; 150 of the individuals diagnosed with the disease tested positive.
Ebola Test Kit Evaluation
Consider the Mali family farm data discussed in problem 8.28 (in Table 8.7 in the sixth edition) (page.479) Determine the value of the sample variance and the sample correlation matrices of the data provided
A randomized, controlled experiment investigated
One of the nation's biggest regional airlines has tracked 4,000 landings and take-offs during the past month. Treating these data as the population of interest, the company found that the average time the planes spent on the ground (called the turn t..
Consider Mary''s study of whether the learning of 6th graders on a math lesson is affected by background noise level. Describe the pros and cons of Mary using a repeated measures design for this study. What would you probably choose to do? Support yo..
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