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Analysis of Variance

ANOVA on Similar Groups

When groups are more alike than different, ANOVA assesses the significance of the difference between two groups. When groups are unalike, will findings be more significant? And what are some conclusions you might draw from that?

ANOVA on Three Data Sets

I need help in performing an Analysis of Variance (ANOVA) on the three data sets. The null hypothesis is that the means of all 3 samples are the same, and the alternate hypothesis is that the means are not the same. There are not equal numbers of scores in each date column, so the fact that the sample sizes to not have to be e

ANOVA Analysis and Five-Step Hypothesis Testing

Please see attached file for full problem description and table format. Please show all work. 1. Given the following data conduct a test of hypothesis to determine whether the block and the treatment means differ. Use the .05 significance level and: a. State the null and alternate hypotheses for the treatments; b. State the

ANOVA - Equality of Means

PROBLEMS: Use the file ANOVA Data Sets. Solutions using Megastat or Excel and hand calculations. 1. Given the mean scores from groups 1, 2, & 3, use One-factor (One way) ANOVA to test for the equality of means. Analyze and report on your results. (HINT) The dame data are presented in two common forms in sheet #1. Obser

ANOVA Analysis of a Variable

1. Choose a variable and collect data for a least three different groups(samples). Compare the means of the three groups using the one-way ANOVA technique. Complete the following: a. Write a brief statement of purpose of the study b. Define the population c. State how the sample was selected d. What alpha value did you use?

Housing Starts and Interests Rates

The coefficient of determination between housing starts and interest rates for a sample of 30 quarters was .65. The standard error of the estimate was 20. Develop an ANOVA table.

Test of hypothesis using ANOVA..

For the following sample information, test the hypothesis at the .05 significance level that the treatment means are equal. Treatment 1 Treatment 2 Treatment 3 9 13 10 7 20 9 11 14 15 9 13 14 12

Anova testing

While doing and ANOVA you found the following: The Mean Sum of Square Between (MSSB) = 2.76 with df 5 and the Mean Sum of square Within (MSSW)= 10.89 with df 11. What conclusion can you draw regarding the null hypothesis of the equality of the means? Note: The test statistic in this case, F = MSSB/MSSW with numerato

ANOVA - Deb is contemplating three new locations for her pizza business

Decision One: ANOVA Deb is contemplating three new locations for her pizza business - adjacent to campuses in Portland, Eugene, and Salem A random survey of 27 pizza shops in those locations is conducted with 9 stores surveyed in each location. (Deb hired college students to sit in the stores and eavesdrop on the pizza order

ANOVA Testing on Personal Bankers Sales Goals

I have the scenario, the data and stated the hypothesis. I need help with the rest, please see attached doc. Feel free to provide or change the data if necessary. Please see attached file for full problem description. Begin by describing the research issue, problem, or opportunity and the accompanying data. o Use Excel to

ANOVA and Hypothesis Testing

The following is sample information. Test the hypothesis at the .05 significance level that the treatment means are equal. Treatment 1 = 9, 7, 11,9,12, 10 Treatment 2 = 13, 20, 14, 13 Treatment 3 = 10,9,15,14,15 1. State the null hypothesis and the alternate hypotheses. 2. What is the decision rule? 3. Compute SST,

T-Tests & analysis of variance

PLEASE NOTE: In addition, to showing your printout and excel, state the result of the hypothesis test in terms of the question by using complete sentences and examples. Ques 1:1 A nationwide sample of influential Republicans and Democrats were asked as a part of a comprehensive survey whether they favored lowering the en

ANOVA

A local delivery company wishes to examine the time it takes drivers to drive specific routes. The following data was collected for three drivers for several days over the same route. Driver 1 Driver 2 Driver 3 22.6 17.3 22.8 21.8 23.4 22.9 23.5 19.7 31.6 24.5 35.4 The ANOVA procedure was employed to evaluate the res

ANOVA / Significance Level

The chief of security for the Mall of the Dakotas was directed to study the problem of missing goods. He selected a sample of 100 boxes that had been tampered with and ascertained that for 60 of the boxes, the missing pants, shoes, and so on were attributed to shoplifting. For 30 other boxes employees had stolen the goods, and f

ANOVA: Hypothesis test

Please see the attached file for full description. ---- The General Social Survey is an annual survey given to a random selection of about adults in the United States. Among the many questions asked are "What is the highest level of education you've completed?" and "If you're employed full-time, how many hours do you spend

Sample Size and Critical Value

The following is a partial ANOVA table. Source Sum of Squares df Mean Square F Treatment 2 Error 20 Total 500 11 Complete the table and answer the following questions. Use the .05 significance level.

ANOVA testing

I have an essay to write, about this statistics problem. I have used several calculation methods and I have no idea where to begin with this problem. I am having difficulty as is with this class. Could you please break down the problem step by step and please explain why I would go with that option to resolve the problem. I have

ANOVA Testing for Mean Rate of Return for Three Stocks

See the attached file. A stock analyst wants to determine whether there is a difference in the mean rate of return for three types of stock: utility, retail, and banking stocks. The following output is obtained: a. Using the .05 level of significance, is there a difference in the mean rate of return among the three types of

Data testing in SPSS

I have atatched a SPSS data file. I have 4 population of the house pricing in Ontario (10 prices in 4 regions) and I need to perform at least 3 tests in SPSS to compare the region with each other. Also I need conclusions for the all. I expect that at least three different tests will be done- for example, you may do an F test

Formula for ANOVA

I know the methodology is ANOVA I just don't know how to work out the formula, Can you please help? Court Case II: In Dendy vs. Washington Hospital Center case, 26 out of 26 white nurses passed an examination and 4 out of 9 African American nurses passed the examination in Washington Hospital Center (UNITED STATES DISTRICT

ANOVA: effect of 4 fertilizers

Four different types of fertilizers are used on raspberry plants. The number of raspberries on each randomly selected plaint is given below. Test the claim that the type of fertilizer makes no difference in the mean number of raspberries per plant. State your hypothesis, draw your curves, label your critical values and your t

Statistics: ANOVA Example

Interpret the results of the ANOVA and the significance of the results to the business. Please explain how each day of the week has a different impact. Also, explain what this means to the banking industry. Explain the what the p values are telling you and the other statistics.

Two-factor ANOVA test for Johnson Shampoo

Johnson Shampoo Company sells three shampoos - for dry, normal, oily, and greasy hair. Sales (in $millions) are given below. Month Dry Normal Oily Greasy June 7 9 12 10 July 11 12 14 12 August 13 11 8 9 September 10 10