Question 1

A normal distribution should result in a symmetrical bell-shaped distribution pattern.

Accepted Answer

A normal distribution is characterized by its symmetrical bell-shaped curve, where the mean, median, and mode of the distribution are all equal and located at the center of the distribution.

Question 2

Chi-square is the most often applied cross-tabular analysis.

Accepted Answer

Chi-square tests are commonly used in cross-tabular analyses to determine if there is a significant association between two categorical variables.

Question 3

Summary statistics are not useful in representing key features of the distribution of a variable.

Accepted Answer

Summary statistics, such as mean, median, mode, standard deviation, and range, are essential for summarizing and understanding the key features of the distribution of a variable, including its central tendency and variability.

Question 4

Skewness only applies to qualitative variables measured at the nominal level.

Accepted Answer

Skewness is a measure of the asymmetry of the probability distribution of a real-valued random variable, which applies to quantitative data, not qualitative variables measured at the nominal level.

Question 5

It is appropriate for an analysist to choose statistics that accentuate a particular feature of a distribution.

Accepted Answer

Choosing statistics to accentuate a particular feature of a distribution can lead to biased analysis and misrepresentation of data, which is not appropriate in objective and ethical statistical analysis.

Question 6

Central tendency combined with variation describes a distribution's overall shape.

Accepted Answer

Central tendency measures the center of a distribution, while variation measures the spread, together describing the overall shape of the distribution.

Question 7

Describe the different types of graphs utilized by quantitative researchers. When graphs are appropriate for the display of data. How can graphs potentially distort the display of information? Why must researchers work to avoid these issues?

Accepted Answer

The answer of Describe the different types of graphs utilized...

Question 8

Identify and describe the three key summary statistics employed by quantitative researchers. Briefly describe each and explain what information it provides researchers and how this is essential to quality data collection and analysis.

Accepted Answer

The answer of Identify and describe the three key summary...

Question 9

Under what circumstances should you consider grouping categories in a frequency distribution? What special considerations must one take when creating categories? How might using categories inappropriately impact findings?

Accepted Answer

The answer of Under what circumstances should you consider grouping...

Question 10

Describe how you should read the following table. In your discretion be careful to name the parts of the chart and establish what each tells us about the data.
Source: General Social Survey (National Opinion Research Center 2018).
Age of respondent * Women not suited for politics Crosstabulation

Accepted Answer

The answer of Describe how you should read the following...

Question 11

What factors must a researcher consider when analyzing data ethically? In other words, explain how data should be ethically collected and presented. Discuss the ramifications of the unethical collection or presentation of statistical data.

Accepted Answer

The answer of What factors must a researcher consider when...

Quiz 10: Quantitative Data Analysis