AP Process Test of Significance for Population Proportion.

Slides:

Advertisements

Similar presentations

Four girls soccer teams took a random sample of players regarding the number of goals scored per game. The results are below. Use a significance level.

Advertisements

Inference on Proportions. What are the steps for performing a confidence interval? 1.Assumptions 2.Calculations 3.Conclusion.

The Proper Conclusion to a Significance Test. Luke Wilcox is an “acorn” at the 2013 AP Statistics reading. After three days of scoring, his table leader.

AP Statistics – Chapter 9 Test Review

Hypothesis Testing Steps of a Statistical Significance Test. 1. Assumptions Type of data, form of population, method of sampling, sample size.

Chapter 25 Asking and Answering Questions About the Difference Between Two Population Means: Paired Samples.

BCOR 1020 Business Statistics Lecture 20 – April 3, 2008.

Section 7-2 Hypothesis Testing for the Mean (n  30)

Significance Tests for Proportions Presentation 9.2.

Chi-square Goodness of Fit Test

Hypothesis Testing with Two Samples

Descriptive statistics Inferential statistics

Claims about a Population Mean when σ is Known Objective: test a claim.

+ Chapter 9 Summary. + Section 9.1 Significance Tests: The Basics After this section, you should be able to… STATE correct hypotheses for a significance.

Hypothesis Testing for Proportions 1 Section 7.4.

Section 7.2 Hypothesis Testing for the Mean (Large Samples) Larson/Farber 4th ed.

Hypothesis Testing for Proportions

Chapter 9 Hypothesis Testing II: two samples Test of significance for sample means (large samples) The difference between “statistical significance” and.

Section Inference for Experiments Objectives: 1.To understand how randomization differs in surveys and experiments when comparing two populations.

Hypothesis Testing for the Mean ( Known)

Agresti/Franklin Statistics, 1 of 122 Chapter 8 Statistical inference: Significance Tests About Hypotheses Learn …. To use an inferential method called.

Hypothesis Testing with One Sample Chapter 7. § 7.2 Hypothesis Testing for the Mean (Large Samples)

STEP BY STEP Critical Value Approach to Hypothesis Testing 1- State H o and H 1 2- Choose level of significance, α Choose the sample size, n 3- Determine.

Section 9.3 ~ Hypothesis Tests for Population Proportions Introduction to Probability and Statistics Ms. Young.

Section 10.3: Large-Sample Hypothesis Tests for a Population Proportion.

Lecture 17 Dustin Lueker.  A way of statistically testing a hypothesis by comparing the data to values predicted by the hypothesis ◦ Data that fall far.

Introduction to Inferece BPS chapter 14 © 2010 W.H. Freeman and Company.

SECTION 7.2 Hypothesis Testing for the Mean (Large Samples) 1 Larson/Farber 4th ed.

Section A Confidence Interval for the Difference of Two Proportions Objectives: 1.To find the mean and standard error of the sampling distribution.

Example Suppose we want to prove that the mean commute time for people in Lexington to get to work is less than 20 minutes. A random sample of 125 people.

Topic 16 Example Confidence Intervals to Estimate a Population Proportion.

Logic and Vocabulary of Hypothesis Tests Chapter 13.

AP Statistics Section 11.1 B More on Significance Tests.

Inference with Proportions Review Mr. Hardin AP STATS 2015.

Statistical Inference Drawing conclusions (“to infer”) about a population based upon data from a sample. Drawing conclusions (“to infer”) about a population.

Introduction to Hypothesis Testing

Tests of Significance: The Basics ESS chapter 15 © 2013 W.H. Freeman and Company.

Chapter 9: Hypothesis Tests for One Population Mean 9.2 Terms, Errors, and Hypotheses.

CHAPTER 10 DAY 3. Warm-Up  Chapter 10 Packet #18-19  #18  μ = the diameter of a spindle (mm)  H 0 : μ = 5  H a : μ ≠ 5  #19  μ = mean household.

Level of Significance Level of significance Your maximum allowable probability of making a type I error. – Denoted by , the lowercase Greek letter alpha.

Hypothesis Tests Hypothesis Tests Large Sample 1- Proportion z-test.

Tests of Significance -how to put them in writing.

The Practice of Statistics Third Edition Chapter 12: Significance Tests in Practice Copyright © 2008 by W. H. Freeman & Company Daniel S. Yates.

SWBAT: -Determine whether to use a one or two tailed test and calculate the necessary p-value -Make and interpret a decision based on the results of a.

Chapter 20 Week 9, Wednesday. Hypothesis Testing Our goal is to answer a question in one of three ways: (1) Is the proportion of Akron students that are.

Ex St 801 Statistical Methods Part 2 Inference about a Single Population Mean (HYP)

9.3 Hypothesis Tests for Population Proportions

Topic 20 Examples Check of Answers.

Significance Test for the Difference of Two Proportions

Chapter 7 Hypothesis Testing with One Sample.

Chapter 7 Hypothesis Testing with One Sample.

Chapters 20, 21 Hypothesis Testing-- Determining if a Result is Different from Expected.

Hypothesis Testing for Proportions

Chapter 8 Hypothesis Testing with Two Samples.

Hypothesis Tests for 1-Sample Proportion

Comparing Two Proportions

Chapter 7 Hypothesis Testing with One Sample.

Chapter Review Problems

Section 12.2: Tests about a Population Proportion

Comparing Two Proportions

Hypothesis Tests for Proportions

CHAPTER 12 Inference for Proportions

STA 291 Spring 2008 Lecture 18 Dustin Lueker.

CHAPTER 12 Inference for Proportions

More on Testing 500 randomly selected U.S. adults were asked the question: “Would you be willing to pay much higher taxes in order to protect the environment?”

Hypothesis Testing for Proportions

STA 291 Summer 2008 Lecture 18 Dustin Lueker.

Tests of Significance Section 10.2.

Hypothesis Testing for Proportions

STAT 1301 Tests of Significance about Averages.

Presentation transcript:

AP Process Test of Significance for Population Proportion

AP Process 1)State the type of significance test you will be conducting. 2)Check the requirements. State what they are, then check whether or not they are met. Also, mention what that means for your results.

AP Process (continued) 3)Write the hypotheses in both words and symbols. 4)Solve for the test statistic (showing formula, work and answer). 5)Calculate the p-value (showing probability statement and answer). 6)Interpret results. This statement should include the following: a)What is your test decision? b)Why did you decide that (compare to α)? c)What is your conclusion (in context)?

Sample Answer (BPS: 20.16) A test of significance for a population proportion. – Random sample from pop.? Not stated, assume random – H o : p =.5 The population proportion of victories by candidates with “better faces” is.5 H a : p >.5 The population proportion of victories by candidates with “better faces” is more than.5

Continued Because our p-value is less than 5%, we reject the null hypothesis. We have strong enough evidence to conclude that the population proportion of victories by candidates with “better faces” is more than.5.