QNT 561 Final Exam 30 Questions & Answers 2015 @ Uopehelp

QNT 561 Final Exam

Access a higher education exam guide of QNT 561 Final Exam, QNT
561 Final Exam Answers, UOP QNT 561 Final Exam, QNT 561 Final
Exam Questions and Answers, QNT 561 Operations Management Final
Exam, QNT 561 Final Exam 1-2 with 42 Questions, QNT 561 Week 6
Final Exam Answer Free and many others are 100% correct solution
click on (UOP E Help) right here.

QNT 561 Final Exam (Latest)

1. A random sample of size 15 is selected from a normal population. The
population standard deviation is unknown. Assume the null hypothesis
indicates a two-tailed test and the researcher decided to use the 0.10
significance level. For what values of t will the null hypothesis not be
rejected?

 To the left of -1.645 or to the right of 1.645
 To the left of -1.345 or to the right of 1.345
 Between -1.761 and 1.761
 To the left of -1.282 or to the right of 1.282

2. Which of the following is a characteristic of the F distribution?

 Normally distributed
 Negatively skewed
 Equal to the t-distribution
 Positively skewed

3. For a chi-square test involving a contingency table, suppose the null
hypothesis is rejected. We conclude that the two variables are
__________.

 related
 curvilinear
 linear
 not related

4. A sales manager for an advertising agency believes that there is a
relationship between the number of contacts that a salesperson makes
and the amount of sales dollars earned. What is the dependent
variable?

 sales managers
 amount of sales dollars
 salesperson
 number of contacts

5. Which of the following is most appropriately displayed with a
frequency table?

 What percentage of people prefer Hunt's brand ketchup
 The home location of the most valuable customers
 How much explanatory value comes from the study's variables
 The relationship between gender and job performance

6. The manager of Paul's fruit and vegetable store is considering the
purchase of a new seedless watermelon from a wholesale distributor.
Since this seedless watermelon costs $4, will sell for $7, and is highly
perishable, he only expects to sell between six and nine of them. What is

the opportunity loss for purchasing nine watermelons when the demand
is for seven watermelons?

8
4
 12
0

7. A firm offers routine physical examinations as part of a health service
program for its employees. The exams showed that 8% of the employees
needed corrective shoes, 15% needed major dental work, and 3% needed
both corrective shoes and major dental work. What is the probability
that an employee selected at random will need either corrective shoes or
major dental work?

 .25
 1.00
 .50
 .20

8. When data is collected using a qualitative, nominal variable, what is
true about a frequency distribution that summarizes the data?

 The upper and lower class limits must be calculated.
 The number of classes is equal to the number of variables plus 2.
 The “5 to the k rule” can be applied.
 A pie chart can be used to summarize the data.

9. If an ANOVA test is conducted and the null hypothesis is rejected,
what does this indicate?

 The p-value is less than a.

 All population means are different.
 At least one pair of population means is different.
 The population means are equal.

10. A random sample of 20 items is selected from a population. When
computing a confidence interval for the population mean, what number
of degrees of freedom should be used to determine the appropriate t-
value?

 25
 21
 19
 20

11. The question, "Should products be withdrawn if even one death is
associated with its prescribed use, even if no fault for the tampered
product accrues to the manufacturer?" is an example of a(n) _____.

 strip data mining issue
 unresearchable question
 ill-defined problem
 favored-technique problem

12. A large department store examined a sample of the 18 credit card
sales and recorded the amounts charged for each of three types of credit
cards: MasterCard, Visa, and Discover. Six MasterCard sales, seven
Visa, and five Discover sales were recorded. The store used an ANOVA
to test if the mean sales for each credit card were equal. What are the
degrees of freedom for the F statistic?

 2 in the numerator, 15 in the denominator

 6 in the numerator, 15 in the denominator
 18 in the numerator, 3 in the denominator
 3 in the numerator, 18 in the denominator

13. A linear trend equation is used to represent time series values when
the data are changing by equal what?

 amounts
 percents and proportions
 proportions
 percents

14. Which of the following goals should a good survey instrument
accomplish?

 Encourage each participant to provide accurate responses
 Encourage participants to be succinct in their responses
 Encourage participants to answer only those questions they are

comfortable answering
 Encourage participants to end the survey when they feel they

have contributed enough information

15. Kroger, a grocery store chain, wants to identify the ideal store
layout for increasing store sales. Because it primarily uses two store
designs, one a grid layout with vertical aisles divided by a center aisle
and another using a traditional straight-aisle pattern, Kroger will
match pairs of stores that have different designs but similar shopper
demographics and location. Sales from each pair will then be compared
to determine if store design is related to sales. Which type of study is
this an example of?

 Exploratory study
 Case study
 Ex post facto study
 Longitudinal study

16. Bones Brothers & Associates prepare individual tax returns. Over
prior years, Bones Brothers has maintained careful records regarding
the time to prepare a return. The mean time to prepare a return is 90
minutes and the standard deviation of this distribution is 14 minutes.
Suppose 100 returns from this year are selected and analyzed regarding
the preparation time. What assumption do you need to make about the
shape of the population distribution of all possible tax preparation
times to make inferences about the mean time to complete a tax form?

 The population distribution is skewed to the left.
 The population distribution is skewed to the right.
 The shape of the population distribution does not matter.
 The population distribution is normal.

17. Checklists with several items to be considered by respondents may
be subject to _____.

 recency effects
 leniency effects
 halo effects
 primacy effects

18. In a multiple rating list scale, ____.

 participants rate multiple items on a 3-point scale
 the participant is restricted to circling their rating

 it is possible to visualize the results better than with other
numerical scales

 the data generated are always ordinal

19. As the size of the sample increases, what happens to the shape of
the distribution of sample means?

 It cannot be predicted in advance
 It is positively skewed
 It is negatively skewed
 It approaches a normal distribution

20. For any chi-square goodness-of-fit test, the number of degrees of
freedom is found by ______.

 n+k
 k -1
 n–k-1
 n+1

21. BankChoice is concerned about stagnating profits and asks, "How
can profitability be improved?" This is an example of a(n) _____.

 research question
 measurement question
 management question
 investigative question

22. A machine is set to fill the small-size packages of M&M candies with
56 candies per bag. A sample revealed three bags of 56, two bags of 57,

one bag of 55, and two bags of 58. To test the hypothesis that the mean
candies per bag is 56, how many degrees of freedom are there?

1
7
9
8

23. An experimental study is one that _____.

 attempts to reveal why or how one variable produces changes in
another

 involves manipulation of one or more variables to determine the
effect on another variable

 attempts to capture a population's characteristics by making
inferences from a sample's characteristics and testing resulting
hypotheses

 discovers answers to the questions who, what, when, where, or
how much

24. The monthly salaries of a sample of 100 employees were rounded to
the nearest $10. They ranged from a low of $1,040 to a high of $1,720. If
we want to condense the data into seven classes, what is the most
convenient class interval?

 $200
 $50
 $150
 $100

25. Consider a regression analysis, where the correlation coefficient is
0.18. Then, the coefficient of determination is _______.

 .0324
 .36
 1.16
 .424

26. In multiple regression analysis, when the independent variables are
highly correlated, this situation is called __________________.

 homoscedasticity
 curvilinearity
 multicollinearity
 autocorrelation

27. Sam's Club installed self-checkout stations that can track not only
member's purchases but also packaging problems, as the system uses
universal product codes to match the item the shopper has in their cart
with its price and inventory level in the store, generating a spreadsheet
style report for the researcher. If you consider the scanner as the tool
for collecting data for Sam's researchers, they are doing data entry by
____.

 spreadsheet
 Optical Character Recognition
 Field editing
 Voice recognition

28. The weekly incomes of a large group of executives are normally
distributed with a mean of $2,000 and a standard deviation of $100.
What is the z-score for an income of $2,100?

 1.683
 0.90
 2.00
 1.00

29. A ranking scale is a scale that _____.

 scores an object without making a direct comparison to another
object

 groups participants
 groups concepts according to specific criteria
 scores an object by making a comparison and determining order

among two or more objects

30. What is the interpretation of a 96% confidence level?

 The interval contains 96% of all sample means.
 Approximately 96 out of 100 such intervals would include the true

value of the population parameter.
 There's a 96% chance that the given interval includes the true

value of the population parameter.
 There's a 4% chance that the given interval does not include the

true value of the population parameter.

Want to download the Complete Answers here…..??

COM 537 Final Exam (Latest)
ECO 372 Week 5 Final Exam
ECO 561 Week 6 Final Exam
FIN 370 Final Exam (Newest)
FIN 571 Final Exam (Newest)
FIN 571 Connect Problems

FIN 575 Final Exam
LAW 421 Final Exam
LAW 575 Final Exam
LDR 300 Final Exam
LDR 531 Final Exam
MKT 421 Final Exam
MKT 571 Final Exam
MKT 575 Final Exam
MKT 578 Final Exam
OPS 571 Final Exam

Click here and download:
http://www.uopehelp.com/