Instructions: This is a close book exam. Anyone who cheats in the exam shall receive a grade of F. Please provide complete solutions for full credit. Good luck!

1 (for all students in class). In a study of hypnotic suggestion, 5 male volunteers participated in a two-phase experimental session. In the first phase, respiration was measured while the subject was awake and at rest. In the second phase, the subject was told to imagine that he was performing muscular work, and respiration was measured again. Hypnosis was induced between the first and second phases; thus, the suggestion to imagine muscular work was “hypnotic suggestion” for these subjects. The accompanying table shows the measurements of total ventilation (liters of air per minute per square meter of body area) for all 5 subjects.

(1) Use suitable test to investigate whether there is any difference between the two experimental phases in terms of total ventilation. Please state the assumption(s) of the test and report the p-value. At the significance level of 0.05, what is your conclusion? (2) Please write up the entire SAS program necessary to answer questions raised in (a). Please include the data step as well as tests for testing for various assumptions.

Solution:
(1) Assume that the difference [pic]is normal.
[pic] and [pic]
The hypotheses are [pic] v.s [pic].
The test statistic is
[pic]
Since [pic] and [pic], we...

...STAT220
Spring 2012
PracticeMidterm
1. Let A and B be events such that P(A) = 0.25 and P(B) = 0.16. Find P(A|B) if
(a) P(A B) = 0.06
(b) P(B|A) = 0.4
(c) P(AB) = 0.33
(d) A and B are independent
(e) A and B are mutually exclusive
2. Among employees of a certain firm, 70% know C/C++, 60% know Java, and 90% know at least one of the two
languages.
(a) What is the probability that a selected programmer knows both languages?
(b) What is the probability that a...

...CLICK TO DOWNLOAD
MAT 540 MIDTERMEXAM
1. Deterministic techniques assume that no uncertainty exists in model parameters.
2. A continuous random variable may assume only integer values within a given interval.
3. A joint probability is the probability that two or more events that are mutually exclusive can occur simultaneously.
4. A decision tree is a diagram consisting of circles decision nodes, square probability nodes, and branches.
5....

...Methods I, IB&M, 2011-2012
Friday, April 27th , 2012, 9:00-12:00 hours.
Name: Student number:
Each correctly answered multiple choice question yields 3 points. The remaining 55 points are alotted to the essay question.
The last question of this exam is on page 12.
Regarding the multiple choice questions: Use the scrap form. Please mark the box associated with the answer you deem to be correct. Do not forget to write your name on the scrap form and mark the right...

...11.
Using the expenditure approach, which of the following would be included in U.S. GDP? a. The value of the groceries you buy at the store. b. The value of an automobile purchased by Hertz to be rented out later to customers. c. The value of steel that was produced but not sold during the year. d. All of the above. e. None of the above.
12.
Which of the following would be considered "government purchases" when measuring GDP? a. The salary of a city police officer. b. U.S....

...Normal(88.532,5.07943)
Normal(97.1033,5.04488)
Normal(107.15,5.15367)
Summary Statistics
Mean
88.532
Std Dev
5.0794269
Std Err Mean
0.2271589
Upper 95% Mean
88.978306
Lower 95% Mean
88.085694
N
500
Sum
44266
Summary Statistics
Mean
97.103333
Std Dev
5.0448811
Std Err Mean
0.2912663
Upper 95% Mean
97.676525
Lower 95% Mean
96.530142
N
300
Sum
29131
Summary Statistics
Mean...

...CLICK TO DOWNLOAD
ECO 550 MidtermExam
1. Economies of Scope refers to situations where per unit costs are
2. For a short-run cost function which of the following statements is (are) not true?
3. According to the theory of cost, specialization in the use of variable resources in the short-run results initially in:
4. Economies of scale exist whenever long-run average costs:
5. The existence of diseconomies of scale (size) for the firm is...

...Statistics 503, Fall 2009, PracticeMidterm 2
Time: 1 hour
Name (please print):
.
Show all your work and calculations. Partial credit will be given for work that is partially correct. Points
will be deducted for false statements shown in the solution to a problem, even if the final answer is
correct. Numbers in the right-hand margin indicate the number of points for each question. If extra
space is needed, use the back of a page and...

...ACCT 301 MidtermExam
CLICK HERE
ACCT 301 MidtermExam 1
1. (TCO 1) Suppose your company sold $25,000 in merchandise to a customer for cash. How does this transaction impact the accounting equation? (Points : 12)
2. (TCO 2) Suppose your company sold $50,000 in merchandise to a customer for cash. How does this transaction impact the accounting equation? (Points : 12)
3. (TCO 3) Rationalization is one of the components of the...

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