Question

A parent has recorded how many minutes it takes their two children to get ready for school across different samples of mornings. Older 45.0 27.2 22.4 30.5 16.1 33.8 42.6 34.7 Younger 25.4 30.6 32.1 28.7 29.5 31.4 What would be the critical value used to construct a 95% confidence interval for the difference in mean times? You may use that fact that s1≈9.7 and s2≈2.4.

Answer 1

The number of samples taken for older child is 8.