Saturday
April 19, 2014

Homework Help: Stats

Posted by James on Monday, July 9, 2012 at 4:28pm.

In a study of children with a particular disorder, parents were asked to rate their child on a variety of items related to how well their child performs different tasks. One item was "Has difficulty organizing work," rated on a five-point scale of 0 to 4 with 0 corresponding to "not at all" and 4 corresponding to "very much." The mean rating for 278 boys with the disorder was reported as 2.28 with a standard deviation of 1.14. (Round your answers to four decimal places.)

Compute the 90% confidence interval.
( 2.167 , 2.393) This is right

Compute the 95% confidence interval.
( 2.1459, 2.4141 ) This is wrong

Compute the 99% confidence interval.
( 2.1035, 2.4565 ) This is wrong

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

math - A quasi-scientific study was done to find some link to autism. In the ...
the fallacies of generalizing PLEASE HELP! - A quasi-scientific study was done ...
Sociolagy - Hi, I was wondering if someone could possibly help me out here I'm ...
psychology - In both parents are carriers of PKU A one child out of four will ...
health - What is major depressive disorder? A. A disorder characterized by ...
Science - Can a person with a genetic disorder that has been corrected by gene ...
probability - In a study of Tibetan children, a total of 1546 children were ...
stats - n a transportation study of 20 large cities, it was found that the mean ...
stats - In a transportation study of 20 large cities, it was found that the mean...
psychology - Marla is a 42-year-old Hispanic female who comes to the mental ...

Search
Members