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Multiple Choice Questions in Business Statistics

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1. The F test statistic in a one-way ANOVA is
a. MSW/MSA.
b. SSW/SSA.
c. MSA/MSW.
d. SSA/SSW

2. In a two-way ANOVA the degrees of freedom for the interaction term is
a. (r - 1)(c - 1).
b. rc(n - 1).
c. (r - 1).
d. rcn + 1.

3. The Kruskal-Wallis Rank Test for Differences in more than two medians is a nonparametric alternative to
a. Fisher's ANOVA F test for completely randomized experiments.
b. Student's t test for related samples.
c. Student's t test for independent samples.
d. Wilcoxon's Rank Sum Test for differences in two medians.

4. In a one-way ANOVA
a. an interaction term is present.
b. an interaction effect can be tested.
c. there is no interaction term.
d. the interaction term has (c - 1)(n - 1) degrees of freedom.

5. When testing for independence in a contingency table with 3 rows and 4 columns, there are ________ degrees of freedom.
a. 5
b. 6
c. 7
d. 12

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Solution Preview

1. The F test statistic in a one-way ANOVA is
a. MSW/MSA.
b. SSW/SSA.
c. MSA/MSW.
d. SSA/SSW

Answer: c. MSA/MSW.

2. In a two-way ANOVA the degrees of freedom for the interaction term is
a. (r - 1)(c - 1).
b. rc(n - 1).
c. (r - 1).
d. rcn + 1.

Answer: a. (r - 1)(c ...

Solution Summary

Answers to 5 Multiple choice questions on one-way ANOVA , two-way ANOVA, Kruskal-Wallis Rank Test for Differences, contingency table.

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Finite math/business analysis
7 Multiple choice questions on statistics

1.Those methods involving the collection, presentation, and characterization of a set of data in order to properly describe the
various features of that set of data are called
a. statistical inference.
b. the scientific method.
c. sampling.
d. descriptive statistics.

2. Which of the following is most likely a parameter as opposed to a statistic?
a. The average score of the first five students completing an assignment.
b. The proportion of females registered to vote in a county.
c. The average height of people randomly selected from a database.
d. The proportion of trucks stopped yesterday that were cited for bad brakes.

3. Which of the following is not an element of descriptive statistical problems?
a. An inference made about the population based on the sample.
b. The population or sample of interest.
c. Tables, graphs, or numerical summary tools.
d. Identification of patterns in the data.

4. When studying the simultaneous responses to two categorical questions, we should set up a
a. contingency table.
b. frequency distribution table.
c. cumulative percentage distribution table.
d. Histogram.

5. A marketing research firm, in conducting a comparative taste test, provided three types of peanut butter to a sample of households randomly selected within the state. Which of the four methods of data collection is involved when people are asked to compare the three types of peanut butter?
a. Published sources
b. Experimentation
c. Surveying
d. Observation

6. Which descriptive summary measures are considered to be resistant statistics?
a. The mean and standard deviation.
b. The interquartile range and range.
c. The mode and variance
d. The median and interquartile range.

7. According to the empirical rule, if the data form a "bell-shaped" normal distribution, _______ percent of the observations will be contained within 1 standard deviation around the mean.
a. 68.26
b. 88.89
c. 93.75
d. 95.44

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