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Discussion 1 - Scatter Plot
Provide a link for a picture of a scatter plot where the r value is not given. Estimate what you think the r value would be and explain why. Discussion 2 - Correlation and Causation
Read the information in Chapter 3 of your text on correlation and causation and Example 6 titled "Spurious Correlation by Lurking Variables". This describes an observed correlation that may be caused by the influence of a third variable. Describe and cite a study where the correlation may be spurious. Alternately, you may choose to create and describe your own study where the observed correlation may be influenced by a third variable. Required Text: Johnson, Richard A. & Gouri K. Bhattacharyya. (2014). Statistics: Principles & Methods. (7th Ed.). Hoboken, New Jersey: John Wiley & Sons, Inc. ISBN: 9781119049661. ISBN: 9781118192450 (includes WileyPLUS). ISBN: 9781118190975 (WileyPLUS stand-alone).
a consignment contains 100 items. if a random sample of 3 items from a consignment contains 1 or more faulty items then
The first and third quartiles were 17.95 and 35.45 miles per gallon, respectively, Develop a box plot and comment on the distribution. Is it a Symmetric distribution?
On January 1, 2014, Global Corporation leased equipment to Local Inc. The following information pertains to this lease.
Estimating the individual score using normal distribution - blood pressure higher than what amount?
question a popular media poll revealed that 44 of australian adults in the 18-34 years category think that lsquomade in
Use Excel and determine the number of each type of person that will be needed to complete the job within the allotted time and at minimum cost.
By using the age midpoints x and the percentages of nurses, do we have a valid probability distribution? Describe.
The sameple you found that 114 of those adults sampled over the age of 24 smoke. Develop a 95% condience interval for the current porportion of adults over the age of 24 who smoke.
1. For each of the following base factorial designs, specify the number of replicates required. (i) 23 with signal-to-noise ratio speci?ed as ρSN = 1.5 (ii) 22 with signal-to-noise ratio speci?ed as ρSN = 1.5
Normal with a standard deviation of 0.3 inch. How does the diameter of an orange at the 67th percentile compare with the mean diameter?
Suppose that the lives of all such bulbs have a normal distribution with a mean of 750 hours and a standard deviation of 55 hours. Let x (sample mean) be the mean life of range sample of 25 such bulbs.
the freshness and overall quality of milk depend upon the type of packaging used. the manager of a dairy company is
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