SOCI 315 Quiz 2

This histogram presents data for the variable "number of siblings." The first bin represents persons with

0 or 1 siblings

A file has data on 600 college students. One of the variables in the data file is the brand of the first car the student owned. 300 students had never owned a car and, thus, had missing data on this variable. Of the 300 students who had owned a car, 30 said Ford was the brand of their first car. As these terms are used in an SPSS frequency table,

5%, 10% (valid)

The frequency table represents the responses of 1980 GSS middle-age adults when asked to identify their social class. Which of the following statements is correct?

Almost everyone was able and willing to answer this question.

Certain entries in this frequency table have been replaced by letters. What numbers should appear in the table?aaaa _____; bbbb _____;cccc _____; dddd _____ . Please match the correct answers with the letters by using the drop down botton.

B. aaaa C. bbbb A. cccc D. dddd

Certain entries in this frequency table have been replaced by letters. What numbers should appear in the table?aaaa_____; bbbb_____cccc_____dddd_____ . Please match the correct answers with the letters by using the drop down botton.

D. aaaa B. bbbb A. cccc C. dddd

"A statistic which summarizes the values on one or more variables for the cases in a data set and only the cases in the data set" is a definition of a(n):

Descriptive statistic

What is the difference between descriptive and inferential statistics?

Descriptive statistics are only concerned with summarizing the values on one or more variables for the cases for which you have data whereas inferential statistics use the cases for which you have data as the basis for drawing conclusions about a larger population.

Which column in a frequency table should you use to find the actual number of cases that gave a particular answer?

Frequency

What is the lowest level of measurement for which you can legitimately use a histogram?

Interval/ratio

The frequency table represents the responses of 1980 GSS middle-age adults when asked how happy they were in their marriage. Which of the following statements is correct?

More than 25% of the respondents were not asked this question.

"A statistic which summarizes or draws conclusions about the relationship between two or more variables" is a definition of a(n):

Multivariate statistic

What is the lowest level of measurement for which you can legitimately use a bar chart?

Nominal

What is the lowest level of measurement for which you can legitimately use a pie chart?

Nominal

Use less than 50 words, briefly describe the similarities and differences on job satisfaction between the 1980 and 2010 GSS middle-age adults

Similarities: The most common level of job satisfaction was "very satisfied," followed by "moderately satisfied," followed by "a little dissatisfied," followed by "very dissatisfied." About half reported being very satisfied while very few reported being very dissatisfied. Differences: There are slightly more respondents in the very or a little dissatisfied groups in the 2010 middle-aged group compared to the 1980 group.

According to class lecture, the first step of any SPSS analysis procedures you will perform this semester is to go to "Edit"--"Options"---"Display Names". What does this do?

To display the variables by their variable names to make it easier to select the variables.

"A statistic which summarizes or draws conclusions about the values on one variable" is a definition of a(n):

Univariate statistic

Which column in a frequency table should you use to find the percent of non-missing cases that gave a particular answer?

Valid percent