TEST 6 May 2015
QUAN102
STATISTICS FOR BUSINESS
Time Allowed:
SIXTY MINUTES
Instructions:
1. There are TWENTY multi-choice questions, each worth ONE
mark. Total marks = 20.
2. Indicate the BEST answer on the multichoice answer sheet provided.
3. Binomial,
TEST 2 April 2015
QUAN102
STATISTICS FOR BUSINESS
Time Allowed:
SIXTY MINUTES
Instructions:
1. There are TWENTY multi-choice questions, each worth ONE
mark.
2. Total marks = 20.
3. Choose the best answer.
1. You are interested in surveying Wellingtonians
QUAN102, 2014 Trimester One, Test 2 Answers
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
C, 75%
B, 44% (33% chose A) e.g. The probability is of B, given A, written P(B|A)
D, 37% (58% chose B) B is true, but so too are A and C
B,
Pearsons correlation between X and Y is y= a +bX =r
Population mean=
Sample mean = xx
Standard deviation for two variables = Sy
Coefficient of determination (a+bx)= r square
A+bx= intercept+slopeX
Correlation between two variables = square root of R sqar
Answers, QUAN 102 Test 1, Trimester 1 2015
1. c, 56%. 26% chose a, but not everyone in Wellington works in the city or strolls Lambton
Quay (similar criticism of b); volunteers are not often representative, excluding d.
2. d, 41%. The mode (c, 39%) is goo
QUAN102, 2014 Trimester 3, Test one answers
1. c, 71% correct. D doesn't account for student numbers in those (or the missing faculties)
2. c, 53% correct. A nominal variable is non-numeric. The mode is the only statistic that can
be calculated
3. b, 78%
Answers, QUAN 102 Test 1, Trimester 2 2015
1.
2.
3.
4.
5.
b, 90%.
d, 48%. 44% chose b, not noticing that there was no key
b, 85%
c, 86%
a, 87%. IQR = 0.24. No observations are less than LQ 1.5 IQR or greater than UQ + 1.5
IQR
6. a, 73%
7. b or c, 47%. 52%
Q1. (c) is the correct answer (98% chose this).
Q2. (b) is the correct answer (98%).
Q3. (d) is the correct answer (73%). To find the 6oth percentile, we need the 7.2
rounded up to 8th number, which is 1093.
Q4. (a) is the correct answer (85%).
Q5. (c) is
TEST 7 May 2014
QUAN102
STATISTICS FOR BUSINESS
Time Allowed:
SIXTY MINUTES
Instructions:
1. There are TWENTY multi-choice questions, each worth ONE
mark. Total marks = 20.
2. Binomial, normal and inverse normal probability tables are available at the end
1. (b) is the correct answer (97% correct).
2. (a) is the correct answer (94% correct).
3. (d) is the correct answer (93% correct).
4. (d) is the correct answer. Obviously, (a) is true. (b) is true (i.e. proportion of people who prefer coffee or tea is
qu
TEST 11 August 2015
QUAN 102
STATISTICS FOR BUSINESS
Time Allowed:
SIXTY MINUTES
Instructions:
1. There are TWENTY multi-choice questions, each worth ONE
mark.
2. Total marks = 20.
3. Choose the best answer.
QUAN 102
1
CONTINUED
Use the following informat
QUAN 102 Test 2 Solutions, 2015, Trimester Two
1. d, 76%
2. a, 46%. If two events are mutually exclusive, they do not intersect at all. 40% chose c,
perhaps confusing mutually exclusive with independent
3. b, 51%. When independent, the probabilities multi
QUAN 102, Summer trimester, 2014, Test 2 answers
1.
2.
3.
4.
5.
6.
C, 71%. The probabilities on the second sets of branches should add to one.
B, 62%
D, 58%. P(B) = 0.48 was popular (36%), but P(B|A) = 0.3, and P(B|A') = 0.6 as well.
B, 86%
B, 87%
A, 30%.
TERMS TEST Test 1 - 6 August 2014
QUAN102
STATISTICS FOR BUSINESS
Time Allowed:
SIXTY MINUTES
Instructions:
1. There are TWENTY multi-choice questions, each worth ONE
mark. Total marks = 20.
2. Answer on the multichoice answer sheet provided.
Formulae:
v
TEST 17 September 2014
QUAN102
STATISTICS FOR BUSINESS
Time Allowed:
SIXTY MINUTES
Instructions:
1. There are TWENTY multi-choice questions, each worth ONE
mark. Total marks = 20.
2. Answer on the multichoice answer sheet provided. Choose the
best answer.
QUAN 102 Test 2 answers, 2015 Trimester 1
1. d, 56%
2. d, 83%
3. a, 29%. P(A or B) = P(A) + P(B) P(A and B) = 0.9. So P(A or B)') = 1-0.9 = 0.1. 54%
chose d, which presumably is 1-P(A and B). This is the probability that both don't detect it,
which is not
TERMS TEST 26 March 2014
QUAN102
STATISTICS FOR BUSINESS
Time Allowed:
SIXTY MINUTES
Instructions:
1. There are TWENTY multi-choice questions, each worth ONE
mark. Total marks = 20.
2. Answer on the multichoice answer sheet provided.
Formulae:
v
u
N
u1 X
TEST 26 November 2014
QUAN102
STATISTICS FOR BUSINESS
Time Allowed:
SIXTY MINUTES
Instructions:
1. There are TWENTY multi-choice questions, each worth ONE
mark.
2. Total marks = 20.
3. Choose the best answer.
1. Which of the following would be the best me
TEST 11 December 2013
QUAN102
STATISTICS FOR BUSINESS
Time Allowed:
SIXTY MINUTES
Instructions:
1. There are TWENTY multi-choice questions, each worth ONE
mark. Total marks = 20.
2. Choose the best answer.
3. Binomial, normal and inverse normal probabilit
QUAN102, 2014 Trimester 2, Test two answers
1. c, 21% correct. Option b is definitely false (25%), since the outcome space by definition
includes all the outcomes. Therefore d (51%) must also be false.
2. a, 79% correct
3. c, 43% correct. Since the probab
TEST 10 December 2014
QUAN102
STATISTICS FOR BUSINESS
Time Allowed:
SIXTY MINUTES
Instructions:
1. There are TWENTY multi-choice questions, each worth ONE
mark. Total marks = 20.
2. Binomial, normal and inverse normal probability tables are available at t
TEST 17 September 2015
QUAN102
STATISTICS FOR BUSINESS
Time Allowed:
SIXTY MINUTES
Instructions:
1. There are TWENTY multi-choice questions, each worth ONE
mark. Total marks = 20.
2. Binomial, normal and inverse normal probability tables are available at