The Cаnаdiаn gоvernment wоuld like tо test the hypothesis that the standard deviation for the hourly wage for men is equal to the standard deviation for the hourly wage for women. The following data summarizes the sample statistics for hourly wages for men and women. Men Women Sample standard deviation $6.10 $6.80 Sample size 21 25 The degrees of freedom for the critical value for Population 1 would be ________.