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June 7, 2019

Briefly explain why the family of Box-Cox transformations is preferred over the simpler-looking family of power transformations

2. The sample ACF and PACF’s are not the same as the “true” ACF and PACF’s. (a) What inputs are needed to compute the sample ACF and PACF’s? (b) What inputs are needed to compute the “true” ACF and PACF’s? (c) How would you explain the difference between the sample […]
June 7, 2019

Based on what you now know about statistical inference, is Sara’s conclusion a logical conclusion?

Suppose that there are two (2) candidates (i.e., Jones and Johns) in the upcoming presidential election. Sara notes that she has discussed the presidential election candidates with 15 friends, and 10 said that they are voting for candidate Jones. Sara is therefore convinced that candidate Jones will win the election […]
June 7, 2019

Convert each subject’s age and height into a z-score

Using the z-score of ±1.645 for the 5 percent cutoff and the z-score of ±1.96 for the 2.5 percent in the tail, identify the subject identification (ID) number for subjects who are closest to the cutoff for the upper 2.5 percent and 5 percent of the scores and the lower […]
June 7, 2019

Pay Time Case Study essay

The purpose of the assignment is to develop students’ abilities in using datasets to apply the concepts of sampling distributions and confidence intervals to make management decisions. Assignment Steps Review the Payment Time Case Study and Data Set. Develop a 700-word report including the following calculations and using the information […]
June 7, 2019

Effects of Violent Video Games on Aggressive Behavior discussion

Need unit 9 and unit 10 assignment and discussion completed. Attached are the details along with template for respective assignment. dataset is included as well in tasia winzip file.
June 7, 2019

Case Study: Improving E-Mail Marketing Response

A company wishes to improve its e-mail marketing process, as measured by an increase in the response rate to e-mail advertisements. The company has decided to study the process by evaluating all combinations of two (2) options of the three (3) key factors: E-Mail Heading (Detailed, Generic); Email Open (No, […]
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