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Analysis of Variance

Stats Problem

1. Dean Gampel, of the School of Business at Sperling University, wants to demonstrate to the editors of Business Week that Sperling University's MBA program is of good quality. He felt he had enough data to show that the quality of the faculty's teaching and research was comparable. However, the Dean felt he did not yet have

Statistics - ANOVA - Family planning agency

1. Please explain in simplest terms F statistic and F test? 2. Under what situations can or could you use the ANOVA? Your answer should at least comment on the type of data needed. 3. A family planning agency wants to know if a religion's emphasis on family and child bearing has any influence on family size. Specifically,

Analysis of Variance: One-Way; Use F-test

Part A: (Analysis of Variance: One-Way; Use F-test) A real estate developer is considering investing in a shopping mall on the outskirts of Atlanta, Georgia. Three parcels of land are being evaluated. Of particular importance is the income in the area surrounding the proposed mall? A random sample of four families is selecte

Stat Problems

Describe a situation from your professional experience which could have benefited from statistical quality controls. How do you select the appropriate quality-control measures for continuous improvement? Davis Outboard Motors, Inc. recently developed an epoxy painting process for corrosion protection on exhaust comp

Statistical Impact of Variables

Assumptions: There is probably some variation in the exact measurements you obtained for each of the settings you used for the variables number-of-books and launcher-position. However, this variation should be relatively small. Therefore, you can assume that each of the four settings has a single value. Based on this assumpti

Analysis of variance of real estate data

Details: Refer to the Real Estate data, which reports information on homes sold in the Denver Colorado Area last year. a. At the .02 significance level, is there a difference in the variability of the selling prices of the homes that have a pool versus those that do not have a pool? b. At the .02 significance level, is

ANOVA vs t-test

What is the importance of ANOVA in statistics? How does ANOVA differ from the t-test?

Advantages of ANOVA.

1. What is ANOVA and what is its underlying theory? In ANOVA, what does F=1 mean? When would you use ANOVA at your place of employment, in your education, or in politics? 2. A researcher finds that 123 respondents have checking accounts at banks, 135 at savings and loan, and 4 at credit unions. The researcher groups 4 of

ANOVA for 3 Types of Battery - Data

I chose to hypothetically test three different samples of batteries using the Analysis of Variance test (Anova). I am supposed to compare and contract again the three different batteries to determine is there is a significant difference between the types and if there is reason to believe that one battery is the same or better t

Analysis of variance in SPSS

The objective of this assignment is for you to compare the means of at least three populations based on random sampling and draw some conclusions from you work. I have already conducted the random sampling for 30 samples. I have chosen car prices in 3 different cities. All you have to do is do the following three tests: t te

Statistics Problem

The following sample data were obtained from three populations that did not follow a normal distribution. sample 1 sample 2 sample 3 50 48 39 54 49 41 59 49 44 59 52

Job Satisfaction Report ANOVA

1. Provide a 2 page write-up of the research highlighting where statistical analysis is being used and why it's used. The paper should use the attached article and should include the terms Job Satisfaction AND ANOVA, or Job Satisfaction AND One-Way ANOVA. 2. Examine and work through as an ANOVA calculation. In this regard, re

ANOVA and Post Hoc Analysis

There are three hospitals. The following data show the number of outpatient surgeries performed at each hospital over the last 10 weeks. At the .05 significance level, can we conclude there is a difference in the mean number of surgeries performed by hospitals? Which hospitals are different from one another? Good Joe St. Mary'

To complete the ANOVA table

Question 11- 20 refer to the following: A manufacturer of automobile transmissions uses three different product processes to produce its product. The management ordered a study of the production costs to see if there is a difference among the three production processes. A summary of the findings is shown below:

Interpretations of interaction effect in mean plot

I have a graph with separate lines for males and females. The bottom axis I compare older and younger. If the lines cross each other, this suggests: 1. no interaction of gender and age 2. an interaction of gender and age 3. only a main effect for gender 4. only a main effect for age

Example of Two way ANOVA,dependent sample t test

Would the following be an example of a 2 way ANOVA: Conducting a survey to determine if low, med, or high doses of a med has improvement of symptoms in 3 groups of patients who have symptoms for less than a year, more than a year, and more than two years My other choices don't make sense: one-way ANOVA, independent sample t

Analysis of Variance of a Fast Food Restaurant Data

33. An owner of a fast food restaurant reported to corporate headquarters that the average bill paid by his customers in the last quarter was $6.20 and that the standard deviation was $1.90. Not knowing exactly what the effect would be, headquarters suddenly launched a nationwide promotional campaign featuring a large quantity

Analysis of variance (ANOVA)

I have some questions regarding ANOVA procedures. Is my following answer correct to this question... The ANOVA can be used to test for differences between means when there is 1. 2 or more IV 2. 2 or more levels of 1-IV 3. is only 1-IV 4. all of the above I choose #3, because I think the ANOVA test with one Ind. v

Three ANOVA Problems

CHP 12 #37 The city of Tucson, Arizona, employs people to assess the value of homes for the purpose of establishing real estate tax. The city manager routinely sends each assessor to five homes and then compares the results. Assessor home Zawodny Norman Cingle Holiday A $53.0 $55.0 $49.0 $45.0 B 50.0

Word Problem

Personal phone calls in a week for women: 12 25 20 35 8 7 For men: 9 5 20 Using the Excel tool for 2-population test, can we conclude that men and women are different in their personal phone call behavior? What test statistic did you use? (t,z,F?) Run the test using the ANOVA Excel tool. Do you get the sam

Hypothesis Testing, Decision Rule and ANOVA

2) The following is sample information. Test the hypothesis that the treatment mean are equal. Use the .05 significance level. Treatment 1 Treatment 2 Treatment 3 8 3 3 6 2 4 10 4 5 9 3 4 A. State the null hypothesis and alternate Hypotheses Ho: u1 = u2 = u3; Treatment means that are not the same B. What is the

Several ANOVA problems

1. Jointsoft is a great over-the-counter arthritis medication, but who will ever know about it? Unfortunately, many people with arthritis tend to be elderly and rather immobile, so advertisers of arthritis medications face limitations in ways to get their messages across. Currently, their best modes of advertisement are commerci

Business Uses of ANOVA

Analysis of variance (ANOVA) is used to determine if there is a difference between the means of different populations. This is an example from a student in Prescott Arizona. A company was trying to sell her the feed they produced by claiming that if her hens ate their feed, the hens would produce more eggs. They offered her a s

One-way ANOVA and Post-Hoc Comparison's test

A random selection of accounting firms from three regions is taken and they are asked to state the starting salary for a new accounting graduate. Do a one-way ANOVA to analyze these data using a 1% level of significance: South Northeast West --------- ----------- --------- $30500 $41000 $3

ANOVA Test on Mean Income of Families

Please answer the question below. Please submit your solution as an Excel attachment and be sure to show ALL calculations that you use to prepare the ANOVA table. A real estate developer is considering investing in a shopping mall on the outskirts of Atlanta, Georgia. Three parcels of land are being evaluated. A random sample