# Connexions

You are here: Home » Content » Collaborative Statistics (with edits: Teegarden) » Hypothesis Testing of Single Mean and Single Proportion: Lab (Edited: Teegarden) 02

### Recently Viewed

This feature requires Javascript to be enabled.

Inside Collection (Textbook):

Textbook by: Mary Teegarden. E-mail the author

# Hypothesis Testing of Single Mean and Single Proportion: Lab (Edited: Teegarden) 02

Module by: Mary Teegarden. E-mail the author

Summary: update of figure 1 to be a normal curve

Single Sample Hypothesis Test

Name:



## I. Student Learning Outcomes:

• The student will select the appropriate distributions to use in each case.
• The student will conduct hypothesis tests and interpret the results.

## II Textbook Survey

The data in the Textbook.mtw lists the cost of 62 books required for a sample of classes from Summer 2008 at Mesa College. Students believe that they are spending on average $100 for their textbooks. Using the data for new books as the sample, conduct a hypothesis test to determine if the average cost of new textbooks at Mesa is lower than$100. (α = 0.08)

1. Ho:

Ha:

2. In words, define the random variable.

3. The distribution to use for the test is:

4. Using Minitab, draw the probability graph and label it appropriately. Attach the graph to this lab.
5. What is the formula for calculating the test statistic? Include the values.

6. Calculate the test statistic using Minitab and include the session window output. test statistic =

7. Determine the p-value using Minitab. p-value =

8. Do you or do you not reject the null hypothesis?

Why? (Use 2 - 3 complete sentences)
9. Write a clear conclusion using a complete sentence.

## II. Language Survey

According to the 2000 Census, about 39.5% of Californians and 17.9% of all Americans speak a language other than English at home. Using students at your college as the sample, conduct a hypothesis test to determine if the percent of the students at your school that speak a language other than English at home is different from 39.5%. (α = 0.05) (Ensure that your sample is large enough to allow for the assumption of normality.)

Sample data: x =


n =


1. Ho:

Ha:

2. In words, define the random variable.

3. The distribution to use for the test is:

4. Using Minitab, draw the probability graph and label it appropriately. Attach the graph to this lab.
5. What is the formula for calculating the test statistic? Include the values.

6. Calculate the test statistic using Minitab and include the session window output. test statistic =
7. Determine the p-value using Minitab. p-value =

8. Do you or do you not reject the null hypothesis?

Why? (Use 2 - 3 complete sentences)
9. . Write a clear conclusion using a complete sentence.

## Content actions

PDF | EPUB (?)

### What is an EPUB file?

EPUB is an electronic book format that can be read on a variety of mobile devices.

PDF | EPUB (?)

### What is an EPUB file?

EPUB is an electronic book format that can be read on a variety of mobile devices.

#### Collection to:

My Favorites (?)

'My Favorites' is a special kind of lens which you can use to bookmark modules and collections. 'My Favorites' can only be seen by you, and collections saved in 'My Favorites' can remember the last module you were on. You need an account to use 'My Favorites'.

| A lens I own (?)

#### Definition of a lens

##### Lenses

A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

##### What is in a lens?

Lens makers point to materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

##### Who can create a lens?

Any individual member, a community, or a respected organization.

##### What are tags?

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

| External bookmarks

#### Module to:

My Favorites (?)

'My Favorites' is a special kind of lens which you can use to bookmark modules and collections. 'My Favorites' can only be seen by you, and collections saved in 'My Favorites' can remember the last module you were on. You need an account to use 'My Favorites'.

| A lens I own (?)

#### Definition of a lens

##### Lenses

A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

##### What is in a lens?

Lens makers point to materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

##### Who can create a lens?

Any individual member, a community, or a respected organization.

##### What are tags?

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

| External bookmarks