AP Statistics p. 351: 5.30.

Slides:

Advertisements

Similar presentations

Significance Testing.  A statistical method that uses sample data to evaluate a hypothesis about a population  1. State a hypothesis  2. Use the hypothesis.

Advertisements

AP Statistics C5 D2 HW: p.287 #25 – 30 Obj: to understand types of samples and possible errors Do Now: How do you think you collect data?

EXAMPLE 1 Find probabilities of events You roll a standard six-sided die. Find the probability of (a) rolling a 5 and (b) rolling an even number. SOLUTION.

1-3 Data Collection and Sampling Techniques Surveys are the most common method of collecting data. Three methods of surveying are: 1) Telephone surveys.

AP Statistics.  Observational study: We observe individuals and measure variables of interest but do not attempt to influence responses.  Experiment:

Section 5.1 Designing Samples Malboeuf AP Statistics, Section 5.1, Part 1 3 Observational vs. Experiment An observational study observes individuals.

AP Review #4: Sampling & Experimental Design. Sampling Techniques Simple Random Sample – Each combination of individuals has an equal chance of being.

Section 5.1 Designing Samples AP Statistics

AP STATISTICS LESSON AP STATISTICS LESSON DESIGNING DATA.

AP Statistics Chapter 13 Notes. Two-sample problems The goal is to compare the responses of two treatments given to randomly assigned groups, or to compare.

OBJECTIVE 7. STUDENTS WILL DEMONSTRATE UNDERSTANDING BY EXPLAINING QUANTITATIVE RESEARCH METHODS.

1.Is it More, Less, or Exactly Half? 2. Is it More, Less, or Exactly Half?

Chapter 5 Sampling: good and bad methods AP Standards Producing Data: IIB4.

 An observational study observes individuals and measures variable of interest but does not attempt to influence the responses.  Often fails due to.

Sampling. A famous sampling mistake That’s Truman They only asked rich, white people with telephones who’d they vote for. Sadly, they published their.

1 Chapter 11 Understanding Randomness. 2 Why Random? What is it about chance outcomes being random that makes random selection seem fair? Two things:

Unit E: Statistics Unit E1: Samples and Populations Digits Topic 14.

Discrete Math Section 17.5 Recognized types of sampling procedures and estimate population characteristics based on samples The purpose of sampling is.

Section 1 Part 1 Chapter 5.

Sampling and Experimentation

Chapter 12 Sample Surveys

Central Limit Theorem Sample Proportions.

CHAPTER 4 Designing Studies

CHAPTER 8 Estimating with Confidence

Section 5.1 Designing Samples

AP Statistics Chapter 5 Section 1.

Chapter 5 Producing Data 5.1 Designing Samples

Section 5.1 Designing Samples

Sampling and Surveys How do we collect data? 8/20/2012.

Who do I ask, what do I ask them, what does that tell me?

الأستاذ المساعد بقسم المناهج وطرق التدريس

AP Statistics Multiple Choice Investigation

Starter Activity Complete the worksheet provided by your teacher!

Producing Data Chapter 5.

סדר דין פלילי – חקיקה ומהות ההליך הפלילי

Other types of samples…

Random Samples Random digit table

Choose the best answer for each problem.

Ch. 6 Public Opinion and Socialization

CHAPTER 10 Comparing Two Populations or Groups

Chapter 5 Producing Data

Section 5.1 Designing Samples

Chapter 5: Producing Data

5.1 – Designing Samples.

Chapter 5: Producing Data

Chapter 5 Producing Data

CHAPTER 10 Comparing Two Populations or Groups

5.1 Sampling and Producing Data

You must show all steps of your working out.

Significance Tests: The Basics

Writing Surveys.

Writing Surveys.

C.2.10 Sample Questions.

Section Way Tables and Marginal Distributions

Chapter 4: Designing Studies

C.2.8 Sample Questions.

10/18/ B Samples and Surveys.

AP Statistics Warm-up: Problem 5.26.

Sampling Techniques Statistics.

Statistics and Probability-Part 4

C.2.8 Sample Questions.

Other types of samples…

Section 9.2: Sample Proportions

Designing Samples Section 5.1.

EQ: What is a “random sample”?

Surveys How to create one.

Presentation transcript:

AP Statistics p. 351: 5.30

5.30 Attitudes toward alcohol At a party there are 30 students over age 21 and 20 students under age 21. You choose at random 3 of those over 21 and separately choose at random 2 of those under 21 to interview about attitudes toward alcohol. You have given every student at the party the same chance to be interviewed: what is the chance? Why is your sample not an SRS? Answer: The chance of being interviewed is 3/30 for students over age 21 and 2/20 under the age 21. It is not an SRS because not all combinations of students have an equal chance of being interviewed.

Answer: The chance of being interviewed is 3/30 for students over age 21 and 2/20 under the age 21. It is not an SRS because not all combinations of students have an equal chance of being interviewed.