The sample correlations are included in the table below. Note that, the covariances are all positive, indicating that the daily intake of each nutrient increases with increased intake of the remaining nutrients.The variance-covariance matrix is also copied into the matrix below. Skill in interpreting the statistical analysis depends very much on the researcher's subject matter knowledge. However, whether the standard deviations are relatively large or not, will depend on the context of the application. This would indicate a high variability among women in nutrient intake. Notice that the standard deviations are large relative to their respective means, especially for Vitamin A & C. Select ‘ Statistics.’, and check the boxes for the statistics of interest.Ī summary of the descriptive statistics is given here for ease of reference. Highlight and select C2 through C6 and choose ‘Select’ to move the variables into the window on the right.Stat > Basic Statistics > Display Descriptive Statistics. Here are the steps to find the descriptive statistics for the Women's Nutrition dataset in Minitab: Descriptive Statistics in Minitab Because the SAS output is usually a relatively long document, printing these pages of output out and marking them with notes is highly recommended if not required! The first part of this SAS output, (download below), is the results of the Means Procedure - proc means. The 'cov' option requests the sample covariance matrix.*/ Proc corr pearson cov /*The 'pearson' option specifies the pearson correlation to be computed. Var calcium iron protein a c /*If not all variables are of interest, we can specify here the ones we want to work with.*/ If any were categorical (not the case here), we would need to put a '$' character after its name.*/ Input id calcium iron protein a c /*This is where we provide names for the variables in order of the columns in the data set. Infile "D:\Statistics\STAT 505\data\nutrient.csv" firstobs=2 delimiter=',' /*SAS will look in this path for the nutrient.csv file.*/ *This sets a title that will appear on each page of the output until it's changed.*/ĭata nutrient /*This defines a data set called 'nutrient'.*/ Title "Example: Nutrient Intake Data - Descriptive Statistics" options ls=78 /*This sets the max number of lines per page to 78.*/ Note: In the upper right-hand corner of the code block you will have the option of copying ( ) the code to your clipboard or downloading ( ) the file to your computer.
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