Assignment 2

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California State University, Chico *

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105

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Statistics

Date

Jan 9, 2024

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pdf

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Uploaded by ProfessorUniverseTarsier7

Assignment Two: Summarizing a single variable, presenting it graphically, and recoding a variable. Name: Marissa Chavez Use APA style and formatting for all assignments, references, and citations as needed. Be sure to complete all of the parts to this exercise. https://owl.english.purdue.edu/owl/resource/560/18/ Part I: Two univariate analyses. Produce and analyze frequency distributions and appropriate measures of central tendency. Use the output to answer the questions below. 1. Open the ACS 2014-2018 dataset. Turn weights on as follows: 2. Click on the “weight cases by” bubble and find the “PWGTP” weighting variable as seen below. Find “Pwgtp” variable , click on the arrow to select, and then click “Okay.”

3. Run a frequency table (see Demonstrations in Chapter Five assigned readings in the text) for the variable sex. Copy and paste the output tables. 4. Now run descriptive statistics as shown in Demonstration 5.6 for the pincp variable instead of for age as is done in the text. Copy and paste the output tables. Descriptive Statistics N Minimu m Maximu m Mean Std. Deviation PINCP 1258140 5 -10800 136400 0 72292.3 7 79452.797 Valid N (listwise) 1258140 5

5. Next do a frequency analysis of pincp. Select “median” in the statistics area. Copy and paste the output tables. Statistics PINCP N Valid 12581405 Missin g 0 Median 50000.00 6. What kind of measure is each variable (i.e., nominal, ordinal, etc)? sex: nominal pincp: interval 7. In an analysis of the two variables, which one is your independent and dependent variable? Independent: SEX Dependent: PINCP 8. How many people are represented in your weighted sample? 12581405 9. What percentage of women and men are there in your sample? Women: 59.3 Men: 40.7 10. Why do the authors suggest using the mode and not the mean to analyze sex? sex is a qualitative variable and we can’t measure mean for them and mode is the only reasonable central tendency that can be measured 11. What is the mean of pincp? 72292.37 12. What is the median of pincp? 50000

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