Saturday
March 28, 2015

Homework Help: Statistics

Posted by Barbara on Sunday, February 28, 2010 at 11:52pm.

The Gibbs Baby Food Company wishes to compare the weight gain of infants using their brand versus their competitorís brand. A sample of 40 babies using the Gibbs products revealed a mean weight gain of 7.6 pounds in the first 3 months after birth. The standard deviation of this sample is 2.3 pounds. A sample of 55 babies using the competitors brand revealed a mean increase of 8.8 pounds with a standard deviation of 2.9 pounds. At 95% level of confidence, can we conclude that the babies using the Gibbs product gained LESS weight? Z-test for Unpaired data

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

marketing - what are the pricing issues in the product category? for the brand ...
statistics - The weight of 14 healthy newborn children was measured. The sample...
statistics - A nutritionist studying weight gain for college freshmen obtains a ...
marketing - reasearch for a brand using company website finf a backround on the ...
bio statistics - using descriptive statistics for weight gain, a friend of yours...
Statistics - A driving machine was employed to hit a sample of 41 each of two ...
statistics - Using the descriptive statistics for the weight of the babies in ...
Statics - An apple grower is trying to produce larger fruit by using a new ...
math - the results of a survey of 100 households pointed to shoppers having a ...
ECONOMICS - Thirty years ago, the market for chicken was perfectly competitive. ...

Members