Saturday
December 20, 2014

Homework Help: statistics

Posted by Jeniffer on Wednesday, August 5, 2009 at 2:00pm.

A maintenance supervisor is comparing the standard version of an instructional booklet with one that has been claimed to be superior. An experiment is conducted in which 26 technicians are divided into two groups, provided with one of the booklets, then given a test a week later. For the 13 using the standard version, the average exam score was 72.0, with a standard deviation of 9.3. For the 13 given the new version, the average score was 80.2, with a standard deviation of 10.1. Assuming normal populations with equal standard deviations, and using the 0.05 level of significance, does the new booklet appear to be better than the standard version?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - 2. (TCO 5) A company produces electronic equipments claims that 98...
physics - does anyone know who conducted the experiment or a credible ...
English - I am psueo conducting an experiment on 144 freshmen high school ...
SICAT.CES NCIII - Study Case Your electronic business has just been selected as ...
Group process? - This old supervisor works at shop soon another supervisor gets ...
Statistics :( - I have like 9 more of these problems, can someone please help me...
Math - A corporate software development firm has a staff of online support ...
C++ - File version maintenance utility   A team of software developers has been...
psychology (information booklet) - I am required to do an information booklet on...
Physic please help! - A wavelength of 625 nm is used in a Young's double-slit ...

Search
Members