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
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
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
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
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'
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:
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
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
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
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
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
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
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
1) Given the following sample information, test the hypothesis that the treatment means are equal at the .05 significance level. Treatment 1 Treatment 2 Treatment 3 3 9 6 2 6 3 5 5 5 1 6 5 3 8 5 1 5 4 4 1 7 5 6 4 a. State the null hypothesis and the alternate hypothesis. b. What is the decision rule? c. C
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
I need some examples of how I would use ANOVA testing and Kruskal-Wallace testing in a small computer business. The computer business sells and repairs computers, sells some computer parts, and does consulting work.
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
I need some examples on how ANOVA is used in different circumstances like work, personal life, education etc.
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
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
To test equality of performance of the two investments, using the 5% level of significance and analysis of variance
An article in the Wall Street Journal compares the performance of the largest Janus fund with the performance of the S&P 500. The comparison is achieved by assuming that$10,000 was invested both in the Janus fund and in the S&P 500. Several months after the investments are made, a random sample of daily portfolio values are draw
The head injury data are given below. Use a 0.05 significance level to test the null hypothesis that the different weight categories have the same mean. Do the data suggest that larger cars are safer? Subcompact 681 428 917 898 420 Compact 643 655 442 514 525 Midsize 469 727 525 454 259 Full-size 384 656 602 687 360
Given the following sample information, test the hypothesis that the treatment means are equal at the .05 significance level. Treatment 1: 8,11,10 Treatment 2: 3,2,1,3,2 Treatment 3: 3,4,5,4 a. state the null hypothesis and the alternative hypotheseis b. what is the decision rule? c. Compute sst, sse, and ss total d.
What are the conditions that permit us to use ANOVA? Three conditions.
The manager of a computer software company wishes to study the number of hours senior executives spend at their desktop computers by type of industry. The manager selected a sample of five executives from each of three industries. At the .05 significance level, can she conclude there is a difference in the mean number of hours
Hi, This is very confusing to me and I feel lost, can you help me find the answers to these questions: 1. A professor had students in a large marketing class rate his performance as excellent, good, fair, or poor. A graduate student collected the ratings and assumed the students that the professor would not receive them u
An ANOVA test was conducted with respect to the population mean. The null hypothesis was rejected. This indicates 1. There were too many degrees of freedom. 2. There is no difference between the population means. 3. There is a difference between at least two population means. 4. A larger sample should be selected. 5. None o
Please use the information in the attached Word document table to create an ANOVA test. Then, perform an ANOVA on your data using any method of computation. Note: Methods of computation could include the usage of Excel - see below for Hypotheses: Let's compare 3 companies; annual stock performance to determine if the v
We are predicting the number of units sold for a local factory that produces snowmobiles. The available annual data are the expenses (in $000), the number of employees, and the rainfall (in in.). Find the best model using the following table. Year Expenses #Employees Rainfall Units Sold 1987 5300
Function In-house Outsource Art Direction 100,000.00 500,000.00 Graphic Design 350,000.00 500,000.00 Print Buy/Design & Production 100,000.00 250,000.00 Production