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DeVry MATH 399 All Discussions-Latest 2017 November Question
DeVry MATH399 Week 1 Discussion Latest 2017 November WEEK 1: DESCRIPTIVE STATISTICS 3737 unread replies.113113 replies. If you were given a large data set (i.e., sales over the last year of our top 100 customers), what might you be able to do with these data? What might be the benefits of describing the data?
DeVry MATH399 Week 2 Discussion Latest 2017 November WEEK 2: REGRESSION 4747 unread replies.115115 replies. Suppose you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information that you have. Your boss has asked you to put together a report showing the relationship between these two variables. What could you present and why?
DeVry MATH399 Week 3 Discussion Latest 2017 November WEEK 3: PROBABILITY AND ODDS 5656 unread replies.123123 replies. The odds of winning a game are given as 1:25. What is the probability that you will win this game? What is the probability that you will lose this game? In your follow-up replies, consider which number in the odds ratio needs to change and how it needs to change in order to increase the probability of winning. (Note: See page 145 in the text for a discussion on odds.)
DeVry MATH399 Week 4 Discussion Latest 2017 November
WEEK 4: DISCRETE PROBABILITY VARIABLES 4747 unread replies.124124 replies. Provide an example that follows either the binomial or Poisson distribution, and explain why that example follows that particular distribution. In your responses to other students, make up numbers for the example provided by that other student, and ask a related probability question. Then, show the work (or describe the technology steps), and solve that probability example.
DeVry MATH399 Week 5 Discussion Latest 2017 November WEEK 5: INTERPRETING NORMAL DISTRIBUTIONS 2121 unread replies.107107 replies. Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not?
DeVry MATH399 Week 6 Discussion Latest 2017 November WEEK 6: CONFIDENCE INTERVAL CONCEPTS 6666 unread replies.113113 replies. Consider the formula used for any confidence interval and the elements included in that formula. What happens to the confidence interval if you 1. increase the confidence level, 2. increase the sample size, or
3. increase the margin of error? Only consider one of these changes at a time. Explain your answer with words and by referencing the formula.
DeVry MATH399 Week 7 Discussion Latest 2017 November WEEK 7: REJECTION REGION 4242 unread replies.114114 replies. How is the rejection region defined, and how is that related to the p value? When do you reject or fail to reject the null hypothesis? Why do you think statisticians are asked to complete hypothesis testing? Can you think of examples in courts, in medicine, or in your area?
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