1. What is the term Bayesian statistics used to indicate?
2. What are the states of nature?
3. What is a variable?
4. What is a z score?
5. How does a z score differs from a t score?
6. What does the symbol sX represent?
7. What is the symbol for standard deviation?
8. What is one formula that we can use to calculate a z score?
9. What does a range chart show?
10. What are the causes of variation?

Solution Summary

This solution correctly answers the statistic questions.

Why is using Bayes' theorem important to help answer business-related questions? What does this theorem allow you to do that traditional statistics do not? What are some prerequisites for using Bayesianstatistics?

Explain with the help of a text or personal example, the use and application of Bayes' approach. Briefly, what is the history of Bayesianstatistics, and how is it being used in business today? What is the difference between Bayes' and Empirical Bayes' approaches?

Why is using Bayes' theorem important to help answer business-related questions? What does this theorem allow you to do that traditional statistics do not? What are some prerequisites for using Bayesianstatistics?

The human X chromosome carries gene that is essential for normal clotting of the blood. The defect in this gene that is responsible for the blood disease hemophilia is recessive: no disease develops in women who have at least one X chromosome with a normal gene. However, a man whose X chromosome has the defect gene develops the

Examples
Fill in the answers for each table below. Please report your z scores to two decimals and your p values to three decimals. If the p value is less than .001, please report p < .001.
µ=25 σ=2
X z p(z)
33
35
43
22
17
µ=25 σ=5
X z p(z)
33
35
43
22
17
µ

1. A sample of n = 7 scores has a mean of M = 5. After one new score is added to the sample the new mean is calculated to be M = 6. The new score was X = 13. (Points: 1)
True
False
2. What is the mean for the following sample of scores?
Scores: 1, 2, 5, 4 (Points: 1)
12
6
4

1. Use the appropriate descriptive statistics from W2 A2.
2. Assuming that the sample statistics you computed are exactly equivalent to the corresponding population parameters, identify the following:
- What score on recall at Time1 would correspond to an extremely high score?
- What score on recall at Time1 would corresp

Show the sum of this list of student scores. If you want to get fancy, show both the sum and the Average. In statistics we call the average by the name of "the mean", but in Excel, it is still called the average. Hint. Look at the excel functions for statistics. See the Insert menu, or find the icon fx.
Student score data

Six students in Mrs. Garcia's Spanish class received the following scores on a test:
10 12 5 2 5 8
Compute the following:
(a) The mean testing score
(b) The median testing score
(c) The modal testing score
(d) The range of the testing scores
(f) The standard deviation of the testing scores
(g)