Assume you obtained a MINITAB output and a boxplot of differences between the number of fish at a depth of 5 meters and 10 meters. Choose the correct statement.
A) The boxplot of differences is approximately symmetric and does not show any outliers, so the assumption of normality is not unreasonable and we will use the paired t test.
B) The boxplot of differences is approximately symmetric, but has outliers, so the assumption of normality is not unreasonable and we will use the paired t test.
C) The boxplot of differences is approximately symmetric, but has outliers, so the assumption of normality is unreasonable and we cannot use the paired t test.
D) The boxplot of differences is approximately symmetric and does not show any outliers, so the assumption of normality is not unreasonable and we cannot use the paired t test.

Question

Assume you obtained a MINITAB output and a boxplot of differences between the number of fish at a depth of 5 meters and 10 meters. ​  ​  ​ Choose the correct statement. ​
A) The boxplot of differences is approximately symmetric and does not show any outliers, so the assumption of normality is not unreasonable and we will use the paired t test. 
B) The boxplot of differences is approximately symmetric, but has outliers, so the assumption of normality is not unreasonable and we will use the paired t test. 
C) The boxplot of differences is approximately symmetric, but has outliers, so the assumption of normality is unreasonable and we cannot use the paired t test. 
D) The boxplot of differences is approximately symmetric and does not show any outliers, so the assumption of normality is not unreasonable and we cannot use the paired t test.

Quizplus · Accepted Answer

The Answer of Assume you obtained a MINITAB output and a boxplot of differences between the number of fish at a depth of 5 meters and 10 meters. ​  ​  ​ Choose the correct statement. ​
A) The boxplot of differences is approximately symmetric and does not show any outliers, so the assumption of normality is not unreasonable and we will use the paired t test. 
B) The boxplot of differences is approximately symmetric, but has outliers, so the assumption of normality is not unreasonable and we will use the paired t test. 
C) The boxplot of differences is approximately symmetric, but has outliers, so the assumption of normality is unreasonable and we cannot use the paired t test. 
D) The boxplot of differences is approximately symmetric and does not show any outliers, so the assumption of normality is not unreasonable and we cannot use the paired t test.

Assume You Obtained a MINITAB Output and a Boxplot of Differences