Unit 7. Day 4..

Slides:

Advertisements

Similar presentations

Agenda of Week V Review of Week IV Inference on MV Mean Vector One population Two populations Multi-populations: MANOVA.

Advertisements

1 Sampling Distributions Chapter Introduction  In real life calculating parameters of populations is prohibitive because populations are very.

Populations and Samples MARE 250 Dr. Jason Turner.

PROBABILITY AND SAMPLES: THE DISTRIBUTION OF SAMPLE MEANS.

AP Statistics Section 13.2 A

Could we use a random sample to discover whether or not peoples’ education level impacts their likelihood to vote in a presidential election?

SAMPLING DISTRIBUTION

Research in Psychology. Research Basics  All psychological research MUST follow the scientific method  Improves accuracy and validity of findings 

Sampling Distribution of a sample Means

Advanced Math Topics 8.2 Selecting a Random Sample.

+ Sampling By Janie Solinski-Ruddy. + The Validity of Your Inferences is Dependent upon Your Sample. A ‘sample’ is a small representation of a larger.

8 Sampling Distribution of the Mean Chapter8 p Sampling Distributions Population mean and standard deviation,  and   unknown Maximal Likelihood.

Ch.8 Sec 2. Measuring Public Opinion Public opinion can be found through a variety of means, voting, lobbying, books, pamphlets, magazines, and newspaper.

CHAPTER 8 SEC 2 Measuring Public Opinion. Government Leaders Make policy based on public opinion Winning party often claim to have a mandate – instructions.

Honors Advanced Algebra Presentation 1-7.  The mean of the quiz grades was 33.77, and the standard deviation was  The mean of Algebra grades is.

Sampling Focus Questions- - What is sampling? - Why should we sample? - What is a reliable sample?

Chapter 18 - Part 2 Sampling Distribution Models for.

In an analysis investigation the usefulness of pennies, the cents portions of 100 randomly selected credit card charges are recorded. The sample.

Political Parties and Interest Groups 1. Define a political party? 2. What three kinds of party systems are used? 3. Name the two major parties in the.

SWBAT: Perform a one sample t-test for a population mean. Do Now:

$1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 Welcome.

BIO 315 Week 3 DQ 2 What is demographic stochasticity? Why are small populations more susceptible to extinction from demographic stochasticity than larger.

Political Parties and Interest Groups

Ch5.4 Central Limit Theorem

Research Methods and Statistics

Sampling Distribution of a sample Means

CHAPTER 4 Designing Studies

Comparing Two Populations or Treatments

Inference for Experiments

1. Which stat plot has a higher standard deviation?

Making Inferences from Random Samples

MATH 2311 Section 8.2.

Online Gifts Buy for wishes happy mother's day to yours choice and with happy gifts find here:

Inferences On Two Samples

Making Statistical Inferences

Since everything is a reflection of our minds,

الأستاذ المساعد بقسم المناهج وطرق التدريس

7th Grade Social Studies Name____________________

CI for μ When σ is Unknown

Statistical Inference for the Mean Confidence Interval

A way of collecting, organizing, and interpreting data

Unit 7. Day 15..

You need: Pencil Agenda Scrap Paper AP log Math book Calculator

Unit 7. Day 3..

Unit 7. Day 6..

Causes of Variation Complete the equation:

Probability Die Difference and Uncertainty

Public Opinion Belief & Behaviors.

Measuring Public Opinion

CHAPTER 10 Comparing Two Populations or Groups

If the chance of having a boy or girl were the same, would you expect there to be more days on which at least 60% of the babies born were boys in a large.

5 points piece Homework Check

Testing and Estimating a Single Variance or Standard Deviation

Inference for Who? Students at I.S.U. What? Time (minutes).

Unit 7. Day 2..

C.2.10 Sample Questions.

MGSE7.SP.3/MGSE7.SP.4: I can use measure of center and measures of variability for numerical data from random samples to draw informal comparative inferences.

Maintenance Sheet Due Wednesday

C.2.8 Sample Questions.

I can use measure of center and measures of variability for numerical data from random samples to draw informal comparative inferences about two populations.

I can determine the different sampling techniques used in real life.

Maintenance Sheet Due Wednesday

Homework Due Friday- Maintenance Sheet 22

Homework Due Friday- Study Island-Maintenance Sheet 25

C.2.8 Sample Questions.

Political Parties and Interest Groups

Exponential Distribution Ends Up Normal

Lesson 31: Using Sampling to Draw Inferences

Maintenance Sheet Due Wednesday

Representative sampling By Majed Muati. Sampling Methods Representative Samples. Random Sampling. Systematic Sampling.

Presentation transcript:

Unit 7. Day 4.

We want information on a large population. We don’t/can’t check everything/everybody Q: What do we do? A: We take a sample of the population REPRESENTATIVE Random selection from the larger population Using a goldilocks amount Q: Why is it important that the selection is random? A: “Random sampling tends to produce representative samples and support valid inferences”

Ballot Activity Step 1: Who wins (each election) in your tiny sample? Step 2: Who wins (each election) in your medium sample? Step 3: Who wins (each election) in your large (class) sample? Step 4: Who wins (each election) in the population?