A major consumer group made a study to determine whether automobile customers would rate the quality of cars differently in terms of average. The individuals in the sample were then asked to provide a rating for each car on a scale of 1 to 1000. The following computer output resulted, and the tests were conducted using a significance level 0.05. Variation Rows column errors SS 34378 16352 818331 df 19 2 38 MS 1809 8176 2153 F ratio 0.84 3.79 p value 0.65 0.03 Regarding the column, which is the following is true? The column is effective The column is not effective the sample size is 100 the number of column is 2