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Discussion Post: Elements of Statistics
Choose one of the 3 options:
Question 1. Elaborate on a concept map about Scientific Knowledge.
Question 2. Elaborate a Venn diagram comparing the types of knowledge: Vulgar and Scientific.
Question 3. Describe the process of scientific knowledge in a presentation using: PowerPoint, Prezi, Storyboard, or any other tool.
What is a 95% confidence interval for µ, the population mean time the postal service employees have spent with the postal service?
What are the four possible outcomes for a test of hypothesis? Show these outcomes by writing a table. Briefly describe the Type I and Type II errors.
a new screening test for a disease has a sensitivity score of .89. which of the following statements are true of this
Refer to Copier maintenance Problem 1.20. The observations are listed in time order. Assume that regression model (12.1) is appropriate. Test whether or not positive autocorrelation is present: use α = .01. State the alternatives, decision rule, ..
Determine a 95% confidence interval for proportion of all voters in favour of candidate.
Where, Ke = Cost of Equity; We = Weight of Equity; Kd = Cost of Debt; Wd = Weight of Debt; and T = Tax Rate (Corporate Finance Institute, 2016).
What test of significance did the researchers use? This can usually be found in a discussions section or reviewed in the methods section of a research article.
Suppose that X1,..,Xn form a random sample from the normal distribution with unknown mean M and unknown standard deviation S, and let m and s denote the MLEs of M and S. for the sample size n=17, find a value of k such that P(m > M +ks) = 0.95
What is the most conservative estimate of the sample size that would limit the margin of error to be within .05 of the population proportion for a 90%.
Use the data in worksheet "Descriptive". Perform simple linear regression on the key variables to address the key objective for this case.
A company has just manufactured 1694 CDs and 376 are defective. If 9 of these CDs are randomly selected for testing, what is the probablity that the entire batch will be accepted?
Using a .025 level of significance, test whether the current technology took longer than the new software to complete the project. Show the following in your re
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