Ch 11 Practice Quiz Flashcards
Which of the following tests is designed to examine multiple dependent variables across single or multiple independent variables?
n-way ANOVA
If the variance between groups is 3 and the variance within groups is 2, the F-ratio is:
1.5
In a survey of 400 respondents, 180 indicated their gender as males and 200 indicated their gender as females. Twenty respondents did not fill out any value for gender. When doing a frequency count on gender, the percentage column and the valid percentage column for males would be:
45% and 47.4%
In a gender study related to income, the null hypothesis is:
There is no difference in incomes between men and women
Related samples are:
Two or more groups of responses that originated from the same sample population
Which of the following tells a marketing researcher the most about the level of agreement among the respondents in the sample when they answered a specific question?
standard deviation
After inputing the data for 99 respondents on a Likert scale item (with response options going from 1 to 7), a researcher calculates one of the measures of central tendency. This measure is found to be 5. The researcher then inputs the value for the 100th respondent, which is 6. The measure of central tendency (calculated for all 100 respondents) stays the same. The measure is most probably a (pick the most appropriate response):
Mode or median
In the formula for calculating the standard deviation, the value of the denominator inside the square roots is:
(n-1)
Variance is:
the average squared deviations about the mean of a distribution of values.
Which of the following is/are used for bivariate hypotheses testing?
Chi-square test
Paired sample t-test
ANOVA
All of the above *
When male students are compared to female students on the average number of hours they study each weekday, this is an example of:
Independent samples
The difference between a particular response and the distribution mean is called a(n):
deviation.
Perceptual mapping is a process that is used to:
Develop maps that show respondents’ perception of a company’s product in comparison to its competitors
The mean, mode, and median are also called:
Measures of location
Which of the following tests require(s) interval or ratio data?
Univariate t-tests
Bivariate t-tests
n-way ANOVA
In one-way ANOVA, which of the following requirements must be met?
The dependent variable must be metric while the independent variable must be categorical
In a one-way ANOVA, the term “one-way” is used because:
only one independent variable is used in the analysis.
T-tests are:
Used when the sample size is less than 30 and the standard deviation is unknown
If the variance between groups is 4 and the F-ratio is 2, then the variance within groups would be:
2
Which of the following measures of central tendency is the best for nominal data?
Mode
The minimum and maximum values for five datasets are given below. Pick the pair that has the maximum range.
3 and 39
If consumers rate price at a McDonald’s restaurant on a 7-point scale using 1 for Unsatisfactory and 7 for Satisfactory, a mean score of 2.34 would be interpreted as:
An unsatisfactory price
Which of the following statements is true about cross-tabulation?
the selection of variables for cross-tabulation should be driven by the objectives of the
research study.
The standard deviation is:
A measure of the average dispersion of the values in a set of responses about their mean
Which of the following statements is true about the t-test?
The t-test provides a mathematical way of determining if the difference between the two sample
means occurred by chance.
The range is:
The distance between the smallest and largest value in a set of responses
The mean is best defined as the:
arithmetic average of the sample.
