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EDUC 7030 Educational Statistics I

Question

Answered

Task:

For computations, show all work and circle final answers.Not showing work is subject to point reduction.

1.A researcher tested the hypothesized equality of two population means with a two-tailed test using computer software(i.e., PASW or SPSS). The reported Sigvalue was .18 and he had the significant level at .05. He shoulda.switch to a one-tailed testb.do the computations by hand to check for errorsc.use another statistical computer softwared.fail to reject the null hypothesis at the significant level of .05

2.The test of homogeneity of variances is used to decidea.whether to use the pooled variance estimateb.whether to use a test for independent or dependent samplesc.whether to use the standard error of the differenced.whether the sample means are different

3.Determining the sample size for a 2-sample case requires knowinga.the level of significance (α)b.the power of the test (1 -β)c.the effect size (ES)d.All of the above

4.Power is defined as the probability ofa.rejecting the alternate hypothesis when it is trueb.rejecting the alternate hypothesis when it is falsec.rejecting the null hypothesis when it is trued.rejecting the null hypothesis when it is false

5.We estimate power toa. determine what effect size must be attainedb.determine the appropriate sample sizec.further explain in meaning of confidence intervalsd.decide whether to use the .01 or .05 level of significance6.Nonparametric tests can be used when violating the parametric assumption of.

EDUC 7030 Educational Statistics I

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MS60057E Business research project

Identify, define and justify a business issue that is of strategic relevance to the chosen organisation.2.Critically analyse and discuss existing literature, contemporary business policies and practices relevant to the chosen issue.3.Evaluate and select appropriate theories/frameworksbased on the ch ...

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SPST500 Research Methods in Space Studies

Task: For this assignment, you will access. There is an interactive tutorial on the website that I recommend you work through if you are not familiar with the controls on the website.  We will be analyzing the solar maximum of the years 2000/2001 (sun cycle 23) to determine whether the daily s ...

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Business Management

TOPIC: Project Outline: Aspects Affecting Restaurants in Sydney CONTENTS SECTION I 1. INTRODUCTION 2. PROBLEM STATEMENT 3. RESEARCH OBJECTIVES/QUESTIONS 4. JUSTIFICATION OF THE PROJECT 5. EXPECTED RESEARCH OUTPUT/OUTCOME SECTION II 1. CONCEPTUAL FRAMEWORK AND RESEARCH HYPOTHESIS 2. METHODOLOGY SECTI ...

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Management

Requirements (Tasks)The whole task of this assignment consists of the following procedural steps.Step 1 :Set up (by your imagination of a real-like business situation or by applying an actual analysis problem case) a scenario in which you are given a set of domain-specific dataset and asked to analy ...

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