Unlock document.
This document is partially blurred.
Unlock all pages and 1 million more documents.
Get Access
Calories Consumed Weight of Adult Male in Pounds
per Day <119 120'‘199 >200 Total
__________________________________________________________________
<1499 16 20 4 40
1500'‘2999 4 90 16 110
>3000 0 10 40 50
__________________________________________________________________
Total 20 120 60 200
What percentage of the predictions about calorie consumption would be made correctly
by taking weight into account?
a. 73%
b. 63%
c. 67%
d. 77%
e. none of the above
The power of statistical test refers to the probability of and is measured by .
a. incorrectly rejecting a true null hypothesis; a
b. correctly accepting a correct null hypothesis; b
c. correctly accepting a correct null hypothesis; 1'‘b
d. correctly rejecting an incorrect null hypothesis; b
e. correctly rejecting an incorrect null hypothesis; 1'‘b
A descriptive study
a. should be begun with the vague idea that the data collected should be interesting.
b. presupposes little prior knowledge about the phenomenon of interest.
c. is simply a fact'‘gathering study.
d. requires a clear specification of the research problem.
e. is characterized by its flexibility.
A product manager for an inexpensive shampoo product was concerned because of
declining sales. The manager felt that in blind product testing there would be no
difference or possibly even a preference by consumers for the inexpensive shampoo
over the expensive brand name alternative. The product manager decides to test this
hypothesis. If the inexpensive shampoo is given by πI and the expensive shampoo by
Ï€E, the correct hypotheses for this situation are
a. H0:πI=πE, Ha:πI > πE.
b. H0:πI=.50, Ha:πI ≠.50.
c. H0:Ï€I<.50, Ha:Ï€I >.50.
d. H0:πI=πE, Ha:πI =≠πE.
e. none of the above.
Assuming the two predictors X1 and X2 are not correlated, the coefficients of
partial regression, ßY1.2 and ßY2.1, can be interpreted as
a. the unit change in the criterion variable associated with an average change in the
appropriate predictor variable while holding the other predictor variable constant.
b. the change in the criterion variable associated with an average change in the predictor
variables.
c. the average change in the criterion variable associated with an average change in the
appropriate predictor variable while holding the other predictor variable constant.
d. the average change in the criterion variable associated with a unit change in the
appropriate predictor variable while holding the other predictor variable constant.
e. the average change in the criterion variable associated with a unit change in the
appropriate predictor variable.(d)
An analyst has a set of normally distributed intervally scaled data resulting from two
observations on the same sample of subjects, and he wishes to investigate if there is any
difference in these two means. The appropriate statistical procedure is
a. z'‘test for difference in two means
b. analysis of variance
c. paired difference t'‘test
d. chi'‘square goodness'‘of'‘fit test
e. Kolmogorov'‘Smirnov test
Which of the following is a means of looking at differences among groups when a
number of characteristics are considered simultaneously?
a. a multivariate statistical procedure
b. a histogram
c. a matrix
d. a cumulative distribution function
e. a frequency polygon
Demographic and socioeconomic characteristics
a. can be called states of being.
b. represent attributes of people.
c. are all easily verifiable.
d. a and b.
e. all of the above.
Which of the following is FALSE?
a. The observation approach to attitude determination rests on the presumption that a
subject's behavior is conditioned by his or her attitudes.
b. The most common approach to measuring attitudes has been self-report.
c. One of the disadvantages of the equal-appearing interval method of scaling is that a
large number of judges are required during the process of developing the scale.
d. One of the advantages of the equal-appearing interval method of scaling is that scale
construction and scale use take place at the same time.
e. The directions to subjects for the Likert scale are the same when constructing it as
when using it.
Which of the following is typically NOT included in the body of a research report?
a. statements as to whether the results are based on primary or secondary data
b. description of the sampling plan
c. discussion of the method of analysis
d. conclusions
e. statement of the limitations of the study
Which of the following is TRUE?
a. The pairwise procedure in conjoint analysis considers all attributes at the same time
but only allows each attribute to be set at two or a pair of levels.
b. An individual typically needs to make more judgments when the full profile method
of data collection is used in conjoint analysis than when the pairwise method is used.
c. The use of rating scales in lieu of rank order judgments to measure preference in
conjoint analysis has been increasing in popularity.
d. When the rating method is used in conjoint analysis, subjects are asked to make
relative judgments with respect to their preference for one alternative versus another.
e. They are all false.
Which of the following is TRUE?
a. The first step in searching published sources of secondary data is to consult a
reference librarian.
b. One key source of secondary information is the trade association, particularly since it
is often able to obtain information from members that might not be available elsewhere.
c. The primary advantage of on-line database searching is access to information not
available in any other format.
d. The main disadvantage of using standardized marketing information services over
primary data is that the data are not as accurate.
e. They are all false.
The Kolmogorov'‘Smirnov test can be used to determine whether
a. two independent samples are drawn from the same population.
b. two independent samples are drawn from different populations.
c. two variables x and y are correlated.
d. variable x explains a significant amount of variation in the dependent measure, y.
e. a and b above.
Which of the following sampling plans does NOT require determining the necessary
sample size before collecting data?
a. quota sample
b. stratified sample
c. sequential sample
d. simple random sample
e. All sampling plans require an a priori determination of sample size.
Which of the following is NOT a generally'‘useful technique for generating items
representative of the domain of a construct?
a. experience surveys
b. consumer surveys
c. literature searches
d. insight'‘stimulating examples
e. all of the above are generally useful
To design a marketing information system, analysts need to know
a. what types of decisions each decision maker regularly makes.
b. what information is necessary to make decisions.
c. the frequency with which information is expected.
d. what types of special studies are periodically requested.
e. all of the above.
A researcher determines a sample of size 100 is necessary to estimate a population
mean with 95% confidence (z=2). The calculation of sample size required that he
estimate the population standard deviation since it was unknown, and he estimated
it as 150. The 100 observations produced a sample mean
_
x= ΣXi/n = 1000
and a sample standard deviation √ Σ (Xi'‘x)2/(n-1) = 200
The resulting confidence interval is
a. 970 < µ < 1030.
b. 996 < µ < 1004.
c. 997 < µ < 1003.
d. 960 < µ < 1040.
e. There are two possible confidence intervals.
Which of the following is FALSE about the research report summary?
a. A true summary gives the high points of the entire body of the report.
b. A good test of a summary is its self-sufficiency in that a summary should not require
the appended full report but should be able to stand on its own.
c. A good summary contains background information, important results, and
conclusions.
d. Headings and subheadings should always be used to organize a summary.
e. The purpose of the introduction in the summary is to provide the reader with the
minimal background to appreciate the results, conclusions, and recommendations of the
study.
Which of the following statements is FALSE? The t'‘test to test a hypothesis regarding
the equity of two population means it
a. assumes the variable is normally distributed
b. is referred to a t'‘distribution which is completely determined by its degrees of
freedom and which depends upon the number of observations in each sample
c. assumes the two samples are independent
d. applies when the variance of the variable in each population is known
e. THEORETICALLY applies for all size samples if the general conditions surrounding
its use are satisfied
What assumption(s) of the error terms in a least squares solution of the linear regression
model must be satisfied?
a. The mean of the disturbance term must equal one.
b. The variance of the disturbance term is independent of the values of the predictor
variable.
c. The values of the error term are independent of one another.
d. all of the above.
e. Both b and c above must be satisfied.
