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Exam 14: Univariate and Bivariate Analysis of Quantitative Data

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Question 1

Multiple Choice

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________ data analysis is the process by which substantive findings are drawn from numerical data.

A) Bivariate
B) Qualitative
C) Quantitative
D) Univariate

E) All of the above
F) A) and B)

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Question 2

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In the pictured cross-tabulation,what are the totals in the bottom row and right most column called?

A) period effects
B) percentiles
C) marginal frequencies
D) conditional means

E) All of the above
F) B) and D)

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Question 3

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Dr.Raza wants to present data on how college hookups vary by social class.What would you recommend as the simplest way to present the comparison between the groups?

A local high school wants to compare the average GPA of female students to that of male students.What statistic should it calculate?

________ analysis allows us to examine two variables simultaneously to see if one variable influences the other.

You are curious about color preference among kindergarteners and have surveyed a class to see which color (pink,purple,blue,green,red,or yellow) is the favorite.Which measure of central tendency should you calculate for this variable?

The ________ is more sensitive to outliers than the ________ is.

Martin is creating a cross-tabulation of categorical variables,and he wants to compare groups to one another.He would like your advice on whether he should compare frequencies or percentages.You suggest that he compare

You have collected sample data on the mean number of hookups students had in the last year.If the mean is 3 and the margin of error is 0.5,what would the 95% confidence interval be?

Consider a study of how gender (male = 0;female = 1)might predict weekly hours of household labor (child care,cooking,cleaning,grocery shopping,etc. ).First,identify the measure of central tendency you would report for each variable at the univariate level and explain why.Second,explain what it would mean if the standard deviation of the household work hours for men was a larger value than the standard deviation for women's household work hours.Finally,regarding the relationship between gender and weekly hours of housework,explain the difference between the bivariate correlation and the regression coefficient.

You are interested in studying gender role attitudes over time in the United States.Would you conduct repeated cross-sectional surveys or panel surveys? Choose one,and justify it as the superior approach for this topic.

Population trends are bivariate patterns in which one of the variables is

Nadia has collected data on whether students study abroad and whether their major is a foreign language.She has created a cross-tabulation with foreign language as the column and studying abroad as the row.She wants to compare foreign language majors to nonmajors.Which percentage should she use?

Julia has collected data on how students at her university feel about the legalization of marijuana.Answers ranged from "strongly disagree" to "strongly agree." She wants to create a graph to display the distribution of responses.What type of graph should she create?

In this table,Column A indicates the ________ of each response.

How does univariate analysis differ from bivariate analysis?

You are interested in studying time spent on social media among college students and have collected the following information: Hours spent on social media each day: 0,1,1,1,2,2,2,2,3,3,3,3,4,4,20 Please calculate the mean and median.Then,determine which measure of central tendency you think best represents the "average" number of hours students spend on social media daily.Justify your choice.

Should researchers report means of ordinal variables? Why or why not?

The margin of error increases when the sample size ________ and the variation in a variable ________.

If a distribution of scores is skewed to the right,this indicates that the outliers