# A food manufacturer claims that eating its new cereal as part of a daily diet lowers total blood cholesterol levels.

## Question:

A food manufacturer claims that eating its new cereal as part of a daily diet lowers total blood cholesterol levels. The table shows the total blood cholesterol levels (in milligrams per deciliter of blood) of seven patients before eating the cereal and after one year of eating the cereal as part of their diets. At α = 0.05, is there enough evidence to support the food manufacturer’s claim?

(a) Identify the claim and state H0 and Ha,

(b) Find the critical value(s) and identify the rejection region(s),

(c) Calculate d̅ and sd,

(d) Find the standardized test statistic t,

(e) Decide whether to reject or fail to reject the null hypothesis,

(f) Interpret the decision in the context of the original claim. Assume the samples are random and dependent, and the populations are normally distributed. If convenient, use technology.

## This problem has been solved!

Do you need an answer to a question different from the above? Ask your question!

## Step by Step Answer:

Related Book For
Question Details
Chapter # 8
Section: 8.3 Exercises
Problem: 19
View Solution
Create a free account to access the answer
Cannot find your solution?
Post a FREE question now and get an answer within minutes. * Average response time.
Question Posted: November 24, 2015 08:08:54