he questions are structured so that a single letter, word, or number will suffice. Computational questions are arranged so that partial credit can be given for each step answered correctly. Always use the following model to submit your answers to the questions.

EXAMPLE:

Answers Q1 C

Q2 B

Q3 A, etc.

If the question requires computation, do the calculations and then give the correct values as follows: (Always hold all decimal values through your computations, and round final answers to at least two decimal places)!

Q4 7

Q5 4

Q6 22, etc.

If the question is a fill in the blank, just put in the appropriate word(s) as follows:

Q7 statistics

Q8 dependent variable, etc. 2

The following 3 questions (Q1 to Q3) are based on the information below:

A survey of Ohio University students was conducted to determine if there was a particular 'Green' that was desired by students to live on. A sample of 210 students responses are reproduced below. Do students prefer a particular 'Green'? Use critical value = 5.99.

West Green South Green East Green

70 50 90

Q1: What are the expected values?

Q2: What is the calculated chi-squared value?

Q3: Was there a significant preference for where students live?

A. Yes

B. No The following 3 questions

(Q4 to Q6) are based on the information below:

A local sports bar wanted to determine whether Ohio University students prefer a particular type of food in their establishment. A sample of 100 students responses are reproduced below. Do students prefer a particular type of bar food? Use critical value = 7.82.

Natchos Pizza ChickenWings Cheese Sticks

18 22 20 40

Q4: What are the expected values?

Q5: What is the calculated chi-squared value?

Q6: Was there a significant preference for what students eat in a sports bar?

A. Yes

B. No

The following 8 questions (Q7 to Q14) are based on the information below:

The following data comes from "The Impact of AIDS on Gender Differences in Willingness to Engage in Casual Sex" by Russell Clark, Journal of Applied Social Psychology, Vol. 20, No.9, pp.771-782. In this study researchers were interested in gender differences in willingness to engage in casual sex. Both males and females were approached by opposite sex confederates and asked one of the three questions: "I have been noticing you around campus. I find you to be very attractive." Then the confederate asked one of these three questions: "Would you go out with me tonight?" "Would you come over to my apartment tonight?" 3 "Would you go to bed with me tonight?"

The type of question was randomly determined for each request. Test for a relationship between gender and compliance with each request. Interpret your findings. The results for the first two questions are as follows:

Date

Yes No

Male11 5

Female7 9

There are four total expected values:

Q7: What are the expected values for 'male-yes' and 'female-yes' (they should be the same)?

Q8: What are the expected values for 'male-no' and 'female-no' (they should be the same)?

Q9: What is the calculated chi-squared value?

Q10: Using a critical value of 3.84, was there a significant relationship between gender and compliance?

A. Yes

B. No

Apartment

Yes No

Male 8 8

Female 2 14

There are four total expected values:

Q11: What are the expected values for 'male-yes' and 'female-yes' (they should be the same)?

Q12: What are the expected values for 'male-no' and 'female-no' (they should be the same)?

Q13: What is the calculated chi-squared value?

Q14: Using a critical value of 3.84, was there a significant relationship between gender and compliance?

A. Yes

B. No

Q15: Which of the following data organization schemes is useful in showing changes in data relationships over time?

A. bar graph

B. pictogram

C. pie chart

D. line graph

E. scatterplot

F. none of the above

Q16: Which of the following is/are necessary for properly displaying a statistical plot, picture, or graph?

A. a title

B. a source

C. proper labeling of the axes

D. proper labeling/representation of the pie segments, bars, etc.

E. All of the above

Q17: A pie chart would be most appropriate with which of the following statistical tests?

A. chi-square goodness-of-fit

B. chi-square test for independence

C. correlation

The following 3 questions (Q18 to Q20) are either "True" or "False"

Q18: Bar graphs are useful to represent two or more measurement variables.

Q19: A chi-square test is appropriate with measurement variables.

Q20: 'Chart-junk' should be used in all statistical plots, pictures, and graphs

The following 6 questions (Q21 to Q26) are based on the following summarized data below: Given the upcoming NBA draft, there are 100 players available:

College Experience(CE) No College Experience (NCE)

Point Guard (PG) 15 3

Shooting Guard (SG) 17 8

Center (C) 10 8

Small Forward (SF) 17 2

Power Forward (PF) 16 4

Find the following probabilities:

Q21: p(PF)

Q22: p(C and NCE)

Q23: p(CE)

Q24: p(SF/CE)

Q25: p(not SG)

Q26: p(CE/PF)

The following 3 questions (Q27 to Q29) are based on the following information:

You have a kennel that contains all Labrador Retrievers. The kennel has 6 black labs, 3 yellow labs, and 1 chocolate lab.

Find the following probabilities:

Q27: What's the probability that you randomly select a black lab, don't put the lab back, then draw another black lab, don't put the lab back, and then draw another black lab?

Q28: What's the probability that you draw a yellow or chocolate lab on the first draw, replace the dog, and then draw a black lab?

Q29: What's the probability that you draw a yellow lab on the first draw, don't put the lab back, and then draw either a yellow or chocolate lab on the second draw?

The following 3 questions (Q30 to Q32) are based on the following information:

John has the phone numbers of many young ladies. Some of these young ladies are blonde and others are brunettes. In addition, John knows that some are single while others have boyfriends. The exact breakdown is as follows:

Blonde Brunette

Single 15 18

Taken 10 12

Find the following probabilities:

Q30: What is the probability of selecting someone who is taken, given that they are blonde?

Q31: What is the probability of selecting a single brunette?

Q32: What is the probability of selecting someone who is brunette, given that they are taken?

Q33: A coin is tossed four times. Which of the following sequences of heads (H) and tails(T) is more likely?

A. HTHT

B. HHHT

C. THHH

D. TTTT

E. all are equally likely

F. none of the above

Q34: If an event can occur twice out of every 10 times, it has the probability value of

A. 0.10

B. 0.20

C. 0.50

D. none of the above three answers are correct

Q35: Probabilities are expressed with what values?

A. negative infinity to positive infinity

B. 0.00 to positive infinity

C. 0.00 to +1.00

D. -1.00 to +1.00

The following 5 questions (Q36 to Q40) are either "True" or "False"

Q36: The 'Subjective View' uses an analysis of possible outcomes to define probability

Q37: 'Gambler's Fallacy' is the incorrect belief that the probability of a particular event changes after a series of the event has taken place.

Q38: 'Mutually Exclusive Events' is when the occurrence of one event has no effect on the probability of occurrence of the other.

Q39: The probability of randomly guessing at the first three multiple choice questions on an exam, each of which has four possible answers, is 0.015625.

Q40: Flipping a coin repeatedly is a series of "Independent Events'

The following 4 questions (Q41 to Q44) are based on the following information:

You and your friends have decided to go to The Kentucky Derby. There are 14 horses in the race. How many ways can the horses come in first, second, or third? Steps for Calculation:

Q41: Is this an example of a combination or a permutation?

Q42: What is N?

Q43: What is r?

Q44: What is the calculated value for this example?