1 Alternative Solution Definition of variables: –Independent variable - advertising campaign. –Dependent variable - sales. Operationalization of variables:

Slides:



Advertisements
Similar presentations
Types of Science:.
Advertisements

Hypothesis testing –Revisited A method for deciding whether the sample that you are looking at has been changed by some type of treatment (Independent.
Def: A process to gain knowledge through thought, experience, and proof of results.
Survey Design Steps in Conducting a survey.  There are two basic steps for conducting a survey  Design and Planning  Data Collection.
Basic Mathematical Models; Direction Fields. A Falling Object.
Analysis of Variance Chapter Introduction Analysis of variance compares two or more populations of interval data. Specifically, we are interested.
Chapter 16 Quantitative Proposals and Reports. WRITING QUANTITATIVE RESEARCH PROPOSALS Part 1: Research Topic Part 1: Research Topic Part 2: Literature.
Lecture 10 Inference about the difference between population proportions (Chapter 13.6) One-way analysis of variance (Chapter 15.2)
Chapter 11 Hypothesis Tests and Estimation for Population Variances
Ratio Estimation and Regression Estimation (Chapter 4, Textbook, Barnett, V., 1991) 2.1 Estimation of a population ratio:
Copyright © 2011 Pearson Education, Inc. Samples and Surveys Chapter 13.
Descriptive statistics Inferential statistics
Analysis of Variance Chapter 12 Introduction Analysis of variance compares two or more populations of interval data. Specifically, we are interested.
In this chapter we will consider two very specific random variables where the random event that produces them will be selecting a random sample and analyzing.
Analysis of Variance ST 511 Introduction n Analysis of variance compares two or more populations of quantitative data. n Specifically, we are interested.
One-sample In the previous cases we had one sample and were comparing its mean to a hypothesized population mean However in many situations we will use.
MATB344 Applied Statistics
Sociological Investigation. Question: Is classroom learning or distance learning the best?
Analyze a graph EXAMPLE 4 The graph shows guitar sales (in millions of dollars) for a chain of music stores for the period 1999–2005. Identify the independent.
Warm-up 9.2 Steps for a sample t-test Answers to E#2 – 5 and 10 E2. a. This is an experiment, not sample, so the condition of random Assignment.
Solving Systems of Equations.
1 Inference about Two Populations Chapter Introduction Variety of techniques are presented whose objective is to compare two populations. We.
Chapter Seventeen. Figure 17.1 Relationship of Hypothesis Testing Related to Differences to the Previous Chapter and the Marketing Research Process Focus.
Reasoning in Psychology Using Statistics Psychology
Scientific Method. Observation:Question:Hypothesis:
Ch8.2 Ch8.2 Population Mean Test Case I: A Normal Population With Known Null hypothesis: Test statistic value: Alternative Hypothesis Rejection Region.
Section 7.2 P1 Means and Variances of Random Variables AP Statistics.
 You have more than two groups  and a mean (average) for each ◦ e.g., young = 4.0, ◦ middle aged = 5.0, ◦ older = 4.5  How do you determine the strength.
Data I.
Chapter 1: Getting Started Section 1: Essential question: What is statistics?
Independent And Dependent Variables The independent variable is the piece of information that the data collector controls or chooses. If time is included.
The population in a statistical study is the entire group of individuals about which we want information The population is the group we want to study.
Major Steps. 1.State the hypotheses.  Be sure to state both the null hypothesis and the alternative hypothesis, and identify which is the claim. H0H0.
Copyright © 2014, 2011 Pearson Education, Inc. 1 Chapter 13 Samples and Surveys.
AP Statistics Chapter 24 Notes “Comparing Two Sample Means”
Hypothesis Testing Example 3: Test the hypothesis that the average content of containers of a particular lubricant is 10 litters if the contents of random.
Chapter 3 Research Design.
Introduction to Hypothesis Test – Part 2
Solving Systems Using Elimination
NULL HYPOTHESIS.
What is the probability that she has to stop exactly once?
When Data Comes in Pairs
Hypothesis Expresses a relationship between two variables.
Survey Design Steps in Conducting a survey
اختر أي شخصية واجعلها تطير!
Chapter 11 Hypothesis Tests and Estimation for Population Variances
Hypothesis Expresses a relationship between two variables.
Homework 0: Overview CSE 409R.
Sampling.
Experimental method By Mr Daniel Hansson.
Summary of Tests Confidence Limits
Doing t-tests by hand.
Section Means and Variances of Random Variables
Section Means and Variances of Random Variables
5 points piece Homework Check
More on Random Variables.
Statistics collection, presentation, analysis and interpretation of data Descriptive collection and description of data sets to yield meaningful information.
C.2.10 Sample Questions.
Psychological Experimentation
Sample Means Section 9.3.
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.
Designing an Experiment
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.
Homework Due Friday- Study Island-Maintenance Sheet 25
C.2.8 Sample Questions.
Chapter 15 Multiple Regression.
Statistical Power.
The Scientific Method.
Homework Due Friday- Study Island-Maintenance Sheet 25
Presentation transcript:

1 Alternative Solution Definition of variables: –Independent variable - advertising campaign. –Dependent variable - sales. Operationalization of variables: –Independent variable - showing alternatives of the advertisement. –Dependent variable - number of sales by unit of light chocolate milk.

2 Measurement: –Show the advertisement(s) –Look directly at the sales numbers supplied by Freia Sample: –Decide what your population is, then how to draw a representative sample. –e.g. If population is all of Norway, then pick an “average” place to show the advertisement.

3 Data collection: –Collect data directly from Freia –Make sure data is available for different regions and possibly each store.

4 Experiment Alternatives: X = treatment O = measurement Alt. 1:XO 1 O 2 Alt. 2:O 1 XO 2 Alt. 3:X 1 O 1 X 2 O 2 O 3