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Scientific Method Lesson for Middle School: Writing a Hypothesis
Scientific method lesson for middle school: writing a hypothesis presentation, free google slides theme, powerpoint template, and canva presentation template.
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Defining the null and alternative hypotheses
Published by Barrie Francis Modified over 5 years ago
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Presentation on theme: "Defining the null and alternative hypotheses"— Presentation transcript:
Chapter 10 Two-Sample Tests
Copyright © 2010 Pearson Education, Inc. Publishing as Prentice Hall Statistics for Business and Economics 7 th Edition Chapter 10 Hypothesis Testing:
Fundamentals of Hypothesis Testing. Identify the Population Assume the population mean TV sets is 3. (Null Hypothesis) REJECT Compute the Sample Mean.
© 2002 Prentice-Hall, Inc.Chap 8-1 Statistics for Managers using Microsoft Excel 3 rd Edition Chapter 8 Two Sample Tests with Numerical Data.
Hypothesis Testing GTECH 201 Lecture 16.
1/55 EF 507 QUANTITATIVE METHODS FOR ECONOMICS AND FINANCE FALL 2008 Chapter 10 Hypothesis Testing.
Chap 11-1 Statistics for Business and Economics, 6e © 2007 Pearson Education, Inc. Chapter 11 Hypothesis Testing II Statistics for Business and Economics.
Chapter Goals After completing this chapter, you should be able to:
Business Statistics: A Decision-Making Approach, 6e © 2005 Prentice-Hall, Inc. Chap 9-1 Introduction to Statistics Chapter 10 Estimation and Hypothesis.
1/45 Chapter 11 Hypothesis Testing II EF 507 QUANTITATIVE METHODS FOR ECONOMICS AND FINANCE FALL 2008.
A Decision-Making Approach
BCOR 1020 Business Statistics Lecture 21 – April 8, 2008.
Business Statistics: A Decision-Making Approach, 7e © 2008 Prentice-Hall, Inc. Chap 10-1 Business Statistics: A Decision-Making Approach 7 th Edition Chapter.
© 2004 Prentice-Hall, Inc.Chap 10-1 Basic Business Statistics (9 th Edition) Chapter 10 Two-Sample Tests with Numerical Data.
Basic Business Statistics (9th Edition)
Chapter 9 Hypothesis Testing.
BCOR 1020 Business Statistics Lecture 20 – April 3, 2008.
Basic Business Statistics, 10e © 2006 Prentice-Hall, Inc. Chap 10-1 Chapter 10 Two-Sample Tests Basic Business Statistics 10 th Edition.
Hypothesis Testing and T-Tests. Hypothesis Tests Related to Differences Copyright © 2009 Pearson Education, Inc. Chapter Tests of Differences One.
McGraw-Hill/IrwinCopyright © 2009 by The McGraw-Hill Companies, Inc. All Rights Reserved. Chapter 9 Hypothesis Testing.
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Hypothesis and Variables
May 24, 2012
340 likes | 1.13k Views
Hypothesis and Variables. Step 3: Form a Hypothesis. Hypothesis - a testable explanation of an observation. A hypothesis is NOT just an educated guess about what you think will happen. It must be able to be tested! . Step 3: Form a Hypothesis.
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Presentation Transcript
Step 3: Form a Hypothesis • Hypothesis- a testable explanation of an observation. • A hypothesis is NOT just an educated guess about what you think will happen. It must be able to be tested!
Step 3: Form a Hypothesis • We write the hypothesis in an If-Then statement ex: If the amount of fertilizer is increased, then the height of the plant will increase.
Variables & Controls • A variable is anything that changes in a scientific experiment. • The control is what you use to compare the results to in the end of the experiment.
There are 2 types of variables: • Independent • Dependent
Step 3: Form a Hypothesis • The Independent Variable goes after the “If” I.V. Ifthe amount of fertilizer is increased, then the height of the plant will increase.
Step 3: Form a Hypothesis • The Dependent Variable goes after the “Then” If the amount of fertilizer is increased, thenthe height of the plant will increase. D.V.
Now You Try: • If you spend more time studying, then your grade will improve. • Independent Variable = • Dependent Variable =
Now You Try: • If you spend more time studying, then your grade will improve. • Independent Variable = amount of time spent studying • Dependent Variable = grade
Now You Try: • If the temperature of the room is increased, then the bacteria will grow faster. • Independent Variable = • Dependent Variable =
Now You Try: • If the temperature of the room is increased, then the bacteria will grow faster. • Independent Variable = temperature of room • Dependent Variable = bacterial growth
2 Types of variables: • Independent Variable: What you change. • Dependent Variable: What changes because of the Independent Variable.
2 Types of variables: • Independent Variable: Cause • Dependent Variable: Effect
Independent Variable • Independent Variable: What you change. • Cause • a.k.a Manipulated Variable • Graphed on x axis
Dependent Variable • Dependent Variable: What changes because of the Independent Variable. • Effect • a.k.a Responding Variable • Graphed on y axis
Independent Variable vs. Dependent Variable
After all of the data from the experiment is collected, then its time to organize the data.
Step 6: Organize your data • Put your data into a data table
Step 6: Organize your data • Make the data table into a graph • GRAPHS make it EASIER to see patterns in the data!
Step 6: Organize your data • How do you know what goes on each axis of the graph?
Step 6: Organize your data • DRY MIX • Dependent Variable = Responding Variable = Y axis • Manipulated Variable = Independent Variable = X axis
Parts of a graph Y Axis X Axis
Parts of a graph Y Axis (Dependent Variable) X Axis (Independent Variable)
Graphing: DRYMIX Dependent Variable Independent Variable
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Hypothesis PPT. Feb 9, 2020 • Download as PPTX, PDF •. 7 likes • 4,557 views. Prof Vijayraddi. This PPT includes details of the hypothesis. Healthcare. 1 of 31. Download now. Hypothesis PPT - Download as a PDF or view online for free.
Dec 16, 2016 • Download as PPTX, PDF •. 357 likes • 344,688 views. R. rajukammari. PPT PRESENTATION OF HYPOTHESIS AND ITS TYPES FOR MED. Education. 1 of 19. Download now. Hypothesis and its types - Download as a PDF or view online for free.
51. Hypothesis Testing About a Single Mean Step-by-Step 1) Formulate Hypotheses 2) Select appropriate formula 3) Select significance level 4) Calculate z or t statistic 5) Calculate degrees of freedom (for t-test) 6) Obtain critical value from table 7) Make decision regarding the Null-hypothesis. 52.
Effect size. Significance tests inform us about the likelihood of a meaningful difference between groups, but they don't always tell us the magnitude of that difference. Because any difference will become "significant" with an arbitrarily large sample, it's important to quantify the effect size that you observe.
Creative White Illustration Waves Science Education School Research Teacher Middle School Editable in Canva. Download this slide deck, edit it in Google Slides or PPT, and watch your students' reaction when you explain everything about writing scientific hypotheses!
1 Introduction to Hypothesis Testing. 2 What is a Hypothesis Test? A hypothesis test is a statistical method that uses sample data to evaluate a hypothesis about a population. 3 Falsifiability A good hypothesis is one that is falsifiable. You cannot prove something that cannot be disproved Better yet, you cannot support a hypothesis if you ...
18 Steps for hypothesis testing. Step 1: State the hypotheses Be sure to state both the null and alternative hypotheses . Step 2: Select a level of significance (1%, 5% or 10%) Step 3: Calculate the test value Step 4: Calculate the probability value Step 5: Make a decision Step 6: Summarize results. Download ppt "Formulation of hypothesis and ...
7-1 Basics of Hypothesis Testing 7-2 Testing a Claim about a Mean: Large Samples 7-3 Testing a Claim about a Mean: Small Samples 7-4 Testing a Claim about a Proportion 7- 5 Testing a Claim about a Standard Deviation (will cover with chap 8) Chapter 7Hypothesis Testing. 7-1 Basics of Hypothesis Testing. Hypothesis in statistics, is a statement regarding a characteristic of one or more ...
Abstract. Hypothesis means less than or less certain than a thesis. Presumptive statement of a proposition or a tentative guess based upon available evidence. It is a tentative or working ...
Writing A Hypothesis. Oct 15, 2014. 190 likes | 1.18k Views. Writing A Hypothesis. What Is a Real Hypothesis?. A hypothesis is a short statement that proposes a possible explanation to some phenomenon or event. A Hypothesis Must Be…. In order to be considered valid, a hypothesis Must Be Testable Must Avoid Opinion or Bias. Download Presentation.
A research hypothesis is a hypothesis that is used to test the relationship between two or more variables. Characteristics of Hypothesis Following are the characteristics of the hypothesis: • The hypothesis should be clear and precise to consider it to be reliable.
Formulating the Hypothesis. Formulating the Hypothesis. The null hypothesis is a statement about the population value that will be tested. The null hypothesis will be rejected only if the sample data provide substantial contradictory evidence. Formulating the Hypothesis. 4.04k views • 18 slides
The intent of hypothesis testing is formally examine two opposing conjectures (hypotheses), H0 and HA. These two hypotheses are mutually exclusive and exhaustive so that one is true to the exclusion of the other. We accumulate evidence - collect and analyze sample information - for the purpose of determining which of the two hypotheses is true ...
Download ppt "Defining the null and alternative hypotheses". Defining the null and alternative hypotheses If the primary concern is deciding whether the population mean is different from some specified value, then the alternative takes the form: Ha : μ ≠ μo If the primary concern is deciding whether the population mean is less than some ...
Elly Thorsen. This scientific method resource about hypotheses contains two interactive notebook pages and a 27 slide PowerPoint. The notes are about about what a hypothesis is and how to write a good hypothesis. The If/then format and the placement of the independent variable before the dependent variable are emphasized.
Hypothesis Testing Chapter 6 Steps for Conducting Scientific Research Study Design This study will examine the effects of temperature on irritability. Subjects will be randomly assigned to one of three temperature conditions (low [70o-72o], moderate [80o-82o], or a high [90o-92o] temperature room). While in the room an assistant will irritate ...
Hypothesis Research Guide. This document defines and discusses hypotheses in research. It begins by defining a hypothesis as a tentative statement about the relationship between two or more variables. It then discusses the importance of hypotheses in providing direction, goals, and a framework for research. The document outlines characteristics ...
Learn how to perform hypothesis testing, a formal procedure for investigating our ideas about the world using statistics. Follow the 5 steps with easy examples and tips for presenting your findings.
It explains a cause and effect. A Hypothesis ... is written in the following way: "If the (independent variable) is (describe change), then the (dependent variable) will (describe measure).". IMPORTANT: You must always write a hypothesis as an "IF...THEN" statement. It shows how the independent and dependent variables are related. Now ...
RESEARCH HYPOTHESIS. Nov 7, 2018 • Download as PPTX, PDF •. 98 likes • 70,592 views. MAHESWARI JAIKUMAR. RESEARCH HYPOTHESIS. Health & Medicine. 1 of 58. Download now. RESEARCH HYPOTHESIS - Download as a PDF or view online for free.
This is a kaizen for quality management ppt powerpoint layout. This is a seven stage process. The stages in this process are continuous improvement kaizen, standardized work, make problems visible, develop countermeasure, determine root cause, hypothesis solution, test hypothesis, implement solution. Slide 1 of 6.
se) eye drops to test the hypothesis that reducing the abundance of NETs from the ocular surface will reduce signs and symptoms of oGVHD. Methods: A prospective, phase I or II, randomized, placebo-controlled, double-masked clinical trial was performed to determine the safety and preliminary efficacy of DNAase (0.1%) eye drops four times daily for 8 weeks in patients with oGVHD (n=58). Intent ...
Research hypothesis. May 6, 2013 • Download as PPSX, PDF •. 304 likes • 189,119 views. Nursing Path. Technology Health & Medicine. 1 of 25. Download now. Research hypothesis - Download as a PDF or view online for free.
Step 3: Form a Hypothesis • We write the hypothesis in an If-Then statement ex: If the amount of fertilizer is increased, then the height of the plant will increase. Variables & Controls • A variable is anything that changes in a scientific experiment. • The control is what you use to compare the results to in the end of the experiment.