Homework Study 6: Descriptive Statistics

The TIME data below are actual reaction times in milliseconds from a sentence-matching experiment with a native speaker of English. Perform the required descriptive statistics for the questions. 

Use the ASCII data in "j:\ling\msdos\otherdata\anovastudy8.sav" for a complete data list.

Data file:  anovastudy8.sav
Variable:  TIME

Subject:  g
ITEM  ORDER    GRAM   MATCH  RSPNS  CORRCT  TRIES    TIME
1        36       0       1      1       1      1    1687
2        56       0       1      0       0      1    2124
3        11       0       1      1       1      1    2756
4        85       0       1      1       1      1    1132
5        28       0       1      1       1      1    2953

(data continue) 

Answer the following questions:

  1. What kind of data are in the variable (nominal, ordinal, or interval)?
     
     
  2. Provide figures to indicate the central tendency of these data.
     
     
  3. Provide figures to indicate the dispersion of these data:
     
     
  4. Approximately 96% of the response times will fall within two standard deviations of the mean. For subject "g," state the times where these scores will fall.
     
     
     
  5. Do these data have any problems with kurtosis or skewedness? Explain with data.