probability SPSS

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LSP 121 - Individual Assignment #1 – General Feedback Use SPSS to calculate all statistics and prepare graphs. Make sure that items copied from SPSS output and pasted to the submission document do not lose the “box” outline and format. I will expect similar items to be copied and pasted successfully (with box and outline) on the exam. 1. A. Basic Descriptive Statistics Include both the stats box and the frequency table Include only the Salary variable, not the eye color and not the salary range z-scores for outliers are greater than +2 or less than -2…..give the variable value itself B. Frequency Distribution Presentation - histogram This is not a normal distribution There are outliers – give the values of the outliers, check the frequency table for specific values Consistency – are the outliers values you found by zscore and by histogram examination the same ? C. Another Frequency Distribution Presentation - Cross-tabulation Include the Crosstab…not the Case Processing Summary Crosstab should be between the two categorical variables – Eye Color and Salary Range Include decode values for the variables Put the variable with more values in the row 2. A. Basic Statistics and Correlation Make sure the data in excel is cleaned up before importing it to SPSS – if there are missing values, you need to check the data in excel, clean it up and import again Include the stats box, frequency table, and histogram Find the percentile on the frequency table – cumulative percentage column Compare the value with Q1, Q2 and Q3 to find the quartile

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B. Correlation Prepare one R box and scatter plot for each pair of variables…each fat vs mortality rate Include a trend line on the scatter plot Use R, not R-squared All are positive. Two are strong, one is weak Correlation does not mean causation 3. Statistics in Everyday Use Provide three examples Are each of the examples deceptive ? (not descriptive)