Demo - conducting a hypothesis test/confidence interval in Fathom Retail T-Tests Project - Since you won't do it if I don't give you a deadline, I need it by Monday May 2

1 Sample T-test and Interval: Average price of an item at a retail store

2 Sample T-test and Interval: Difference in prices between two stores

Matched Pair T-test and Interval: Mean difference between item prices

Thursday April 28, 2011

Graphing Calculator, Formula Sheet, Something to write with, something to write on
1. Using the t-model

finding critical values given DF, tail probability

finding/approximating probability

calculating t-scores and determining probability

2. T-intervals - estimating the true mean

Sample of size 26 - videos watched

Estimate the number of videos watched

3. Hypothesis Test - the true mean number of videos watched is 11

Complete tasks #1-4 below. In order to get this done, you'll need to spend minimal time staring at the screen, scrolling up and down a window, and highlighting all words on this page.
1. 1st Period - finish bean counting
2. Enter Data from yesterday: Inference for Means Form
3. Errors - directions in Excel sheet - right-click and Save As... to your H: drive.

Check skills 20.1-20.5 and 19.1, 19.2 in the Unit V skills page for a refresher)

3. 22.1, 22.2, 22.3, 22.4: Generate and test a hypothesis about the difference between males and females at recognizing microexpressions 4. Reassessment

Thursday April 7, 2011

19.2: Share observations - post a discussion on the 19.2 Page

Use the link below along with the Excel Spreadsheet

Posts in April, 2011Units 5-6; Chapter 20

## Table of Contents

-25

March << | >> May

## Friday April 29, 2011

Demo - conducting a hypothesis test/confidence interval in FathomRetail T-Tests Project - Since you won't do it if I don't give you a deadline, I need it by Monday May 2

## Thursday April 28, 2011

Graphing Calculator, Formula Sheet, Something to write with, something to write on1. Using the t-model

- finding critical values given DF, tail probability
- finding/approximating probability
- calculating t-scores and determining probability

2. T-intervals - estimating the true mean- Sample of size 26 - videos watched
- Estimate the number of videos watched

3. Hypothesis Test - the true mean number of videos watched is 11HOMEWORK: If you haven't watched these videos, just do it already1. One Sample T-test (#1)

2. One Sample T-test (#2)

3. T-test Critical Value Approach

4. Differences Between Means (Excel)

5. Two Sample T-test Worked Example (please ignore the standard deviation calculation, your calculator will do this for you)

6. Paired T-tests

7. Paired T-Tests in Calculator

8. Paired T-Test and Confidence Interval

## Wednesday April 27, 2011

HOMEWORK: Watch these videos as many times as you need to and come to class loaded with a list of questionsYou haven't had homework all year, now you're being asked to watch videos for HW...1. Differences Between Means (Excel)

2. Two Sample T-test Worked Example (please ignore the standard deviation calculation, your calculator will do this for you)

3. Paired T-tests

4. Paired T-Tests in Calculator

5. Paired T-Test and Confidence Interval

## Tuesday April 26, 2011

Reminder: Practice AP Exam Signup1. Data Collection - Sample Averages

- Create a Google Doc and discuss the three different methods of data collection for each activity
- No need to share it with Mr. C

- The Form: Sample Means Form
- The Data: Sample Means Data

2. Collect a sample of size 10 from each activity (walk to pool, memory experiment, bean counting)10-11 Inference for Means Data.xlsx

- Details
- Download
- 12 KB

- Create a collection in Fathom to keep your sample

3. The T-ModelHOMEWORK: Watch these videos as many times as you need to and come to class loaded with a list of questionsYou haven't had homework all year, now you're being asked to watch videos for HW...1. Understanding the P-value

2. Hypothesis Testing

3. Level of Significance in Hypothesis Testing

4. One Sample T-test (#1)

5. One Sample T-test (#2)

6. T-test Critical Value Approach

## Wednesday April 20, 2011

1. If you didn't finish yesterday, finish Errors Assessment today2. 2 Proportion Tests - Calculator

## Tuesday April 19, 2011

1. If you didn't finish yesterday, finish Errors Assessment today- If you were absent, complete it
- If you did not finish, complete it
- Missing about 15, wondering why they're not done
- I hope it's not because you're afraid of getting a bad grade (really?)
- Remember you can always change any grade in any marking period at any time

2. Two Proportion Z-test (Skill 22.1, 22.2, 22.4)## Monday April 18, 2011

Errors Assessment## Friday April 15, 2011

1. Errors(Part II) - using the spreadsheet from yesterday, complete a certain number of samples and deciding to Reject/FTR- Unlock the spreadsheet once Mr. C has given you the password

2. Create a Google Doc for yourself: you should be able to answer the following questions## Thursday April 14, 2011

1. Errors(Part II) - using the spreadsheet from yesterday, complete a certain number of samples and deciding to Reject/FTR- Unlock the spreadsheet once Mr. C has given you the password

2. Read this: The Cost of Overemphasizing Achievement## Wednesday April 13, 2011

Complete tasks #1-4 below.In order to get this done, you'll need to spend minimal time staring at the screen, scrolling up and down a window, and highlighting all words on this page.1. 1st Period - finish bean counting

2. Enter Data from yesterday: Inference for Means Form

3. Errors - directions in Excel sheet - right-click and Save As... to your H: drive.

4. Read this: How to fail

Inference For Means Data CollectionTuesday April 12, 2011- Walk to the Pool
- Memory Experiment
- Bean Counting
- Enter your data: Inference for Means Form

Two-Proportion Z-test: Microexpressions Test## Monday April 11, 2011

Review of Teacher Tattoos (One proportion z-test and interval)Microexpressions - Inference for Two Proportions

Friday April 8, 20111. Microexpressions Test

- Submit your data here: Microexpressions Data Collection

2.Teacher Tattoos (One proportion z-test and interval) -- Check skills 20.1-20.5 and 19.1, 19.2 in the Unit V skills page for a refresher)

3. 22.1, 22.2, 22.3, 22.4: Generate and test a hypothesis about the difference between males and females at recognizing microexpressions4. Reassessment

## Thursday April 7, 2011

19.2: Share observations - post a discussion on the 19.2 Page

2. Microexpressions Test

- Submit your data here: Microexpressions Data Collection

3. Reassessment: If you'd like to reassess on Friday complete Reassessment Form found here## Wednesday April 6, 2011

19.1: Demo: Constructing a confidence interval with correct z-scores- 68% Confidence
- 90% Confidence
- 95% Confidence
- 99.7% Confidence

For your sample proportion, calculate a confidence interval for each level of confidence- Submit your intervals: One-proportion Z-intervals

19.2: Share observations - post a discussion on the 19.2 Page- One Proportion Z-interval Data
- Raw Data (Sheet 1)
- Capture the True Proportion? (Sheet 2)

Reassessment: If you'd like to reassess on Friday complete Reassessment Form found here## Tuesday April 5, 2011

Mr. C isn't here!Choose one of the two options:

1. Complete the Ch. 20 sections of the Unit V Assessment

2. Projects - Unit IV and Unit V

## Monday April 4, 2011

Skill 19.1 and 19.21. Graduation Party - save the Excel sheet to your H: drive to make things easy. Directions are in the file.

2. Working with one sample proportion to construct an interval (19.1 )

3. Interpret that interval (19.2 )

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