Stat 217 Investigation 7

Stat 217 Investigation 7 - Joe Cremen Stats 217 Dr. Soy...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Joe Cremen Stats 217 Dr. Soy Investigation 7 1. a. Observational units: near sighted and not near sighted children b. Variable(s): whether the child is near sighted or not (categorical- explanatory). Whether the child slept in the dark or a room with a night light or room light (categorical- response). c. Observational study. There are no variables being manipulated in this study. The researchers are simply asking and recording questions given to the parents. d. Proportion of near sightedness in darkness: 0.104 Proportion of near sightedness in light room: 0.388 e. f. Yes. Based on the segmented bar-chart it looks as if there is evidence that indicates an association between child’s room lighting and child’s eye sight. It appears there is a much higher percentage of near-sighted children that had a room light compared to children that slept in the dark. g. Ho: There is no association between childrens’ eye sight that sleep in the dark compared to childrens’ eye sight that have a light room or a night light. Ha: There is an association between childrens’ eye sight that sleep in the dark compared
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/24/2011 for the course ARTS 131 at Santa Clara.

Page1 / 2

Stat 217 Investigation 7 - Joe Cremen Stats 217 Dr. Soy...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online