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Analysis of Variance

Diet Statistical Analysis

A physician who specializes in weight control has three different diets she recommends. As an experiment, she randomly selected 15 patients and then assigned 5 to each diet. After three weeks the following weight losses, in pounds, were noted. At the 0.05 significance level, can she conclude that there is a difference in the mea


A. The number of shares of Icom, Inc. turned over during a month, and the price at the end of the month are listed in the following table. Also given are the estimated Y' values. Turnover (thousands of shares) X Y(actual price) Y'(estimated price) 4 $2

How do I do a two way Anova test and analyze the data?

Please view the attachment which more clearly defines my problem. --- Choose two sets of hypothesis using ANOVA you can simulate your own data (n=20) Sample size =288. Ho=u2=u3 where u means population. H1:u1#u2#u3. where u means population. I am trying to figure out how to do this problem. Test two sets of hypothesis

ANOVA, Hypothesis Tests and F-Tests

(See attached file for full problem description with proper symbols and diagrams) --- 2. What is the critical F value for a sample of four observations in the numerator and seven in the denominator? Use a one-tailed test and the .01 significance level. 3. The following hypotheses are given. A random sample of eight

ANOVA Questions

Here are some questions that I am asking in general to using ANOVA testing. 1) What are three lessons learned relative ANOVA and Nonparametric tests? 2) What concepts and analytic tools will you be able to use in your workplace ?

Experimental Design and Analysis

You are a training manager for a manufacturing firm and have three new training programs to assess. You assign, at random, equal numbers of employees to each of the training programs in order to determine which program is most efficient. How might you go about analyzing the results? I am trying to decide which test to use?

Are the Three Treatment Means Equal?

Given the following sample information, test the hypothesis that the treatment means are equal at the .05 significance level. a. State the null hypothesis and the alternative hypothesis. b. What is the decision rule? c. Compute SST, SSE, and SS total. d. Complete an ANOVA table. e. State your decision regarding the null h


This is the assignment it is a group assignment. Each team member will provide research on Job Satisfaction. Again, use the Business Source Elite Database in the Cybrary and write up a short 1 page report on the topic. Each team member should use different sources. Each team member is to do the following: 1. Research th

ANOVA Problem

When we want to test two samples to determine if it is likely that the population means (estimated by the sample means) are different, we typically use a t-test. If the samples are large, we can also use a z-test. (Note that the formulas for computing s, t and/or z in the case of a two-sample test are different than the formula

Two anova tests

Perform two ANOVAs using the attached files. The first data set, the tab labeled "Vaccines", is the percent of infants who are vaccinated against certain diseases. The states are grouped by regions (there are 9 regions altogether). Test whether the vaccination rates are the same in all 9 regions. The second data set, the t

Anova problems...

Anova problems - still after many weeks I am not getting it. --- (See attached file for full problem description)

ANOVA and Economic Policy

Please help me to understand how an ANOVA is conducted using the information from the hypothesis below and how this is calculated in Excel: The Economic Policy Institute has the statistics on the number of vacation days for employees in the United States which are about 16 vacation days a year, with France at 30 and Japan with


Based on the attached research on job satisfaction Using the two pairs of hypotheses How do I test them using ANOVA? Job Satisfaction Group Project - QMB350 - SMcGann.doc (See attached file for full problem description)

Anova Function in Excel to test Hypotheses

I need assistance testing these hypotheses using Anova (Single Factor) in Excel. I need to show what is returned( F-statistic, F critical, and a P-value.) I then need to use these values to reject or accept H0. I have done this in Excel, but need help making sure my figures are right and determining if I accept or reject HO.

Summary of job satisfaction research

In unit 4 the topic of job satisfaction was researched. Provide one page summary of your findings. Are your findings consistent with what you observed when you tested your hypothesis in unit 4? (Unit 4 -research topic on job satisfaction. Choose two sets of hypothesis and test the hypothe sis using ANOVA) similate your own data


22. The following sample data were obtained from three populations where the variances were not equal, and you wish to compare the populations. Sample 1 Sample 2 Sample 3 21 15 38 29 17 40 35 22 44 45 27 51 56 31 53 71 a. State the null hypothesis. b. Using t

Randomized Block Anova

In an advertisement in a local newspaper, Best Food supermarket attempted to convince consumers that it offered them the lowest total food bill. To do this, Best Food presented the following comparison of the prices of 60 grocery items purchased at three supermarkets-Best Food, Public, and Cash'N Carry-on a single day (*see atta

ANOVA: Is the omnibus null hypothesis rejected or retained?

Scenario: Five individual groups G1 = mean 11.6, variance 9.6, n 10 G2 = mean 13.6, variance 9.6 n 10 G3 = mean 16.6, variance 11.6. n 10 G4 = mean 15.6. variance 13.6, n 10 G5 = mean 18.2, variance 10.4. n 10 Source of variation Sum of Squares Degrees of Freedom Mean Square F Treatments

ANOVA and Error Rate

Scenario: Independant variable = Sugar DV= weight gain # subjects 50 random assignment into 5 groups, with varying amounts of sugar from 0 to 100gms. Groups 1- 4 have unlimited access to IV, group #5 is limited to one "dose". At the end of the week subjects are weighed.

Test of hypothesis using t statistics, ANOVA

1. Please define the following terms. Tell me how the term is used in statistics and provide an example to demonstrate your knowledge. Pasting a definition from the web or from the text will result in a zero for the final. 1.1 population proportion 1.2 type I error 1.3 p-value 1.4 ANOVA 2. The mean annual turnover rate

The experiment was basically trying to see if water volume has a direct effect on goldfish growth. My aim is to show that all the volume groups really showed no variation between one another.

Hello, I need some insight about this experiment I'm doing concerning goldfish growth. Basically, I've gathered all my data, and now I'm trying to figure out a way to analyze it. The experiment was basically trying to see if water volume has a direct effect on goldfish growth. I used different volumes and allowed the fish to st

Analyze Data: independent measures design ANOVA; repeated-measures design: Four separate experiments investigated the effect of three postulated amnestic agents on memory for a simple rote learning task. Analyze your data set with an independent measures design ANOVA. Analyze the data sets you were assigned again, but this time treat it as data from a repeated-measures design.

4 Four separate experiments investigated the effect of three postulated amnestic agents on memory for a simple rote learning task. The task consisted of the learning of a list of 80 monosyllabic words presented to the subject at the rate of 1 per second, via a tachistoscope. The list was presented 10 times. At the end of the fin

Construct ANOVA table

Hello. Could you show me how to solve the attached problem. It's long, but it's still a basic statistics HW problem. The problem asks 3 questions: a) build a 95% confidence interval b) construct an ANOVA c) which pairs are different? Thanks for any assistance you can give.

ANOVA, P-Value and Equality of Mean

1) An agronomist wants to compare the crop yield of three varieties of chickpea seeds. She plants 15 fields, five with each variety. She then measures the crop yield in bushels per acre. The results are presented in the table (see attachment). Use the following computer printout to test for the equality of mean crop yields of

ANOVA: Statistical Analysis (Psychology Example)

A clinical researcher is interested in testing the effectiveness of an anti-depressant drug. She randomly assigned 10 depressed people to a placebo condition, additional 10 depressed people to the drug condition, and additional 10 depressed people to the double-dosage condition. Prior to the experiment, all 30 people had equival