View the step-by-step solution to:

# An animal trainer obtained the following sample data (Table A) in a study of reaction times of dogs (in seconds) to a specific stimulus.

1.An animal trainer obtained the following sample data (Table A) in a study of reaction times of dogs (in seconds) to a specific stimulus. He then selected another group of dogs that were much older than the first group and measure their reaction times to the same stimulus. The sample data is shown in Table B. Classes Frequency Table A 2.3-2.9=32 3.0-3.6=17 3.7-4.3 =25 4.4-5.0 =14 5.1-5.7 =4 5.8-6.4= 20 Table B 2.3-2.9 =13 3.0-3.6 =12 3.7-4.3 =20 4.4-5.0 =13 5.1-5.7 =3 5.8-6.4 =18 Find the variance and standard deviation for the two distributions above. Compare the variation of the data sets. Decide if one data set is more variable than the other.

### Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

### -

Educational Resources
• ### -

Study Documents

Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

Browse Documents