STATQUIZ SOLUTION
QUESTION 1
a. |
4 minutes |
|
b. |
8 minutes |
|
c. |
3 minutes |
|
d. |
7 minutes |
10 points
QUESTION 2
a. |
0.1450 |
|
b. |
0.4987 |
|
c. |
0.4772 |
|
d. |
0.3331 |
10 points
QUESTION 3
a. |
84.13% |
|
b. |
34.13% |
|
c. |
97.72% |
|
d. |
15.87% |
10 points
QUESTION 4
a. |
0.4772 |
|
b. |
0.5001 |
|
c. |
0.0013 |
|
d. |
0.0228 |
10 points
QUESTION 5
a. |
$36,400 |
|
b. |
$24,400 |
|
c. |
$42,000 |
|
d. |
$56,000 |
10 points
QUESTION 6
a. |
0.1554 |
|
b. |
0.1698 |
|
c. |
0.4967 |
|
d. |
0.3413 |
10 points
QUESTION 7
a. |
Stratified random sampling |
|
b. |
Systematic sampling |
|
c. |
Simple random sampling |
|
d. |
Cluster sampling |
10 points
QUESTION 8
a. |
Stratified random sampling |
|
b. |
Voluntary response |
|
c. |
Simple random sampling |
|
d. |
Cluster sampling |
10 points
QUESTION 9
a. |
Systematic sampling |
|
b. |
Cluster sampling |
|
c. |
Stratified random sampling |
|
d. |
Simple random sampling |
10 points
QUESTION 10
a. |
Voluntary response sampling |
|
b. |
Simple random sampling |
|
c. |
Stratified random sampling |
|
d. |
Chain sampling |
10 points
QUESTION 11
a. |
False |
|
b. |
True |
|
c. |
Not applicable |
|
d. |
Not applicable |
10 points
QUESTION 12
a. |
(14.01, 16.01) |
|
b. |
(15.26, 16.74) |
|
c. |
(15.59, 16.41) |
|
d. |
(16.34, 18.57) |
10 points
QUESTION 13
a. |
(15.24, 16.36) |
|
b. |
(13.6, 16.8) |
|
c. |
(15.43, 16.57) |
|
d. |
(14.1, 17.9) |
10 points
QUESTION 14
a. |
12 boards |
|
b. |
60 boards |
|
c. |
152 boards |
|
d. |
138 boards |
10 points
QUESTION 15
a. |
t = 1.694, z = 1.65 |
|
b. |
t = 2.733, z = 2.576 |
|
c. |
t = 2.738, z = 2.576 |
|
d. |
t = 2.037, z = 1.96 |
10 points
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STATQuiz SOLUTION
1. Car wash waiting times at the local convenience store follow a uniform distribution. The wait time ranges from 0-16 minutes. What is the mean waiting time at the car wash?
a. 4 minutes
b. 8 minut...
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