The world’s Largest Sharp Brain Virtual Experts Marketplace Just a click Away
Levels Tought:
Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | Jul 2017 |
| Last Sign in: | 362 Weeks Ago, 1 Day Ago |
| Questions Answered: | 5502 |
| Tutorials Posted: | 5501 |
MBA.Graduate Psychology,PHD in HRM
Strayer,Phoniex,
Feb-1999 - Mar-2006
MBA.Graduate Psychology,PHD in HRM
Strayer,Phoniex,University of California
Feb-1999 - Mar-2006
PR Manager
LSGH LLC
Apr-2003 - Apr-2007
1.    Identify the type of sample described:  To estimate television viewing habits, a cable company draws a simple random sample of households.  Someone visits each household and interviews every member of the household about his or her viewing habits.
Question 1 options:
| Â |
A.   Systematic sample |
| Â |
B.   Stratified sample |
| Â |
C.   Voluntary response sample |
| Â |
D.   Cluster sample |
2.    Identify the type of sample described:  A factory worker measures the thickness of every 100th metal plate that comes off a conveyor belt.
Question 2 options:
| Â |
A.   Stratified sample |
| Â |
B.   Sample of convenience |
| Â |
C.   Cluster sample |
| Â |
D.   Systematic sample |
3.    Which of the following variables is qualitative?
Question 3 options:
| Â |
A.   Brand name |
| Â |
B.   Credit card balance |
| Â |
C.   Person's height |
| Â |
D.   Distance traveled to work |
4.    Which of the following variables is discrete?
Question 4 options:
| Â |
A.   Running time for a 100 m race |
| Â |
B.   Shoe size |
| Â |
C.   Length of a jump |
| Â |
D.   Weight of a cookie |
5.    Identify the type of bias in the given scenario: A store sends out a questionnaire to a simple random sample of frequent shoppers asking whether they would like the store to start carrying certain brands.  Of the 500 questionnaires 35 were returned.  Eighty six percent of respondents stated that they would buy the proposed brands.
Question 5 options:
| Â |
A.   Social acceptability bias |
| Â |
B.   Non-response bias |
| Â |
C.   Self-interest bias |
| Â |
D.   Voluntary response bias |

6.    A coffee shop recorded the orders of all customers who bought a drink between 7 and 8 am.  Drink types are summarized in the table.  What is the relative frequency of "mocha"?
Â
Question 6 options:
|
 |
A.   0.13 |
|
 |
B.   0.23 |
|
 |
C.   0.39 |
|
 |
D.   0.59  |

7.    The given pie chart describes customer cake orders during a one-week period.  Which of the following statements is true?
Â
Question 7 options:
|
 |
A.   Office party cakes and wedding cakes made up over half of the cake orders during the given week. |
|
 |
B.   If a total of 200 cakes were sold during the week in question, 55 cakes must have been office party cakes. |
|
 |
C.   If a total of 200 cakes were sold during the week in question, 30 cakes must have been wedding cakes. |
|
 |
D.   The relative frequency of birthday cake orders is 0.58 |

8.    How many classes are represented by the given histogram?
Â
Question 8 options:
|
 |
A.   5 |
|
 |
B.   1.5 |
|
 |
C.   10.8 |
|
 |
D.   18.3  |

9.    What is the class width?
Â
Question 9 options:
|
 |
A.   2     |
|
 |
B.   10.8 |
|
 |
C.   18.3 |
|
 |
D.   1.5 |
10. The Empirical Rule applies to histograms that exhibit which of the following shapes?
Question 10 options:
| Â |
A.   Bell shape |
| Â |
B.   Unimodal |
| Â |
C.   Skewed |
| Â |
D.   Bimodal |

11. The given stem-and-leaf plot represents the wights of dogs at an adoption event.  How many dogs at the event weighed 32 lbs.?
Â
Question 11 options:
|
 |
A.   0 |
|
 |
B.   3 |
|
 |
C.   1 |
|
 |
D.   2 |
Â
Â
Hel-----------lo -----------Sir-----------/Ma-----------dam----------- T-----------han-----------k y-----------ou -----------for----------- us-----------ing----------- ou-----------r w-----------ebs-----------ite----------- an-----------d a-----------cqu-----------isi-----------tio-----------n o-----------f m-----------y p-----------ost-----------ed -----------sol-----------uti-----------on.----------- Pl-----------eas-----------e p-----------ing----------- me----------- on----------- ch-----------at -----------I a-----------m o-----------nli-----------ne -----------or -----------inb-----------ox -----------me -----------a m-----------ess-----------age----------- I -----------wil-----------l