ch 25 - Chapter 25 Solutions 25.1(a Diagram below(b The...

This preview shows pages 1–3. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Solutions 277 25.4. (a) The stemplots (right) show no extreme outliers or skewness. (b) The means suggest that a dog reduces heart rate, but being with a friend appears to raise it. (c) F = 14 . 08 and P = 0 . 000 (meaning P < 0 . 0005), which means that we reject H 0 : µ P = µ F = µ C in favor of H a :a t least one mean is different. Based on the conFdence intervals, it appears that the mean heart rate is lowest when a pet is present (although this interval overlaps the control interval) and is highest when a friend is present (although again, this interval overlaps the control interval).
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/30/2009 for the course PSYC PSYC 60 taught by Professor ? during the Fall '09 term at UCSD.

Page1 / 6

ch 25 - Chapter 25 Solutions 25.1(a Diagram below(b The...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online