### Present Remotely

Send the link below via email or IM

• Invited audience members will follow you as you navigate and present
• People invited to a presentation do not need a Prezi account
• This link expires 10 minutes after you close the presentation

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

# Chapter 10

No description
by on 7 November 2016

Report abuse

#### Transcript of Chapter 10

Chapter 10
Question 33
A recent study revealed the typical American coffee drinker consumes an average of 3.1 cups per day. A sample of 12 senior citizens revealed they consumed the following amounts of coffee, reported in cups, yesterday.

At the .05 significance level, does the sample data suggest there is a difference between the national average and the sample mean from senior citizens?
Chapter 10
Question 33
Given data: find x-bar and s.
Chapter 10
Question 33
Step 1: State the Null and Alternate Hypotheses.
Chapter 10
Question 33
Step 2: Select the Level of Significance.
Chapter 10
One-Sample Tests of Hypothesis

2.6 2.6 3.1 3.1 3.1 3.2 3.3 3.5 3.8 4.1 4.3 4.4
Jose Fuentes
Laudy Calderon
Elizabeth Rodriguez
Chapter 10
Question 33
Step 3: Select the Test Statistic.
Since Population Standard deviation is unknown, we will use the t-distribution with n-1 (12-1=11) degrees of freedom.
Chapter 10
Question 33
Step 4: Formulate the Decision Rule
Natasha Vera
Jose Fuentes
Chapter 10
Question 33
Step 5: Make a Decision.
Since 1.85 is not less than -2.2 we do not reject H(0) at a significance level of 0.05.
Michael Cespedes
Chapter 10
Question 33
Step 6: Interpret the Result.
We have shown that the mean number of cups consumed by the typical American coffee drinker may indeed be 3.1 cups.
Lisa Puga
Chapter 10
Question 33
Decision Rule Using the P-Value.
By looking at the t-distribution table to find our zα, we can conclude that our p-value is between a 0.05 and 0.1 level of significance.
Sarah Rosen
3.1 3.3 3.5 2.6 2.6 4.3 4.4 3.8 3.1 4.1 3.1 3.2
Full transcript