Share
Explore BrainMass

Analysis of Variance

ANOVA Table

Please see attachment. ANOVA: Hypothesis tests and the ANOVA table A manager at LLD Records is investigating the company's market research techniques. She learns that much of the market research of college students is done during promotions on college campuses. Other market research of college students, though, is done thro

ANOVA/F statistic

Please see attachment. ANOVA: Degrees of freedom and the F statistic 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 mes

ANOVA and Hartley's test Comparison

Comparison of c means in one-factor ANOVA is the same as using c repeated t-tests. True False Hartley's test measures the equality of the means for several groups. True False

Three true/false questions about ANOVA and Hartley's test

ANOVA assumes equal variances within each treatment. true or false Comparison of c means in one-factor ANOVA is the same as using c repeated t-tests. true or false Hartley's test measures the equality of the means for several groups. true or false

SPSS - one sample, independent samples t-test, one way ANOVA

Having difficulty with this exercise. I need to do the following using the attached SPSS file. 1) One Sample t-test - Using "Length of Stay" as the test variable, conduct a hypothesis test on whether the average length of stay is 14 days. - What are the steps to running this in SPSS? (I need to have the output)

DISCUSSION BOARD

Deliverable Length: 4 paragraph Details: provide research on Job Satisfaction. Again, use the Business Source Premier Database and/or the ABI Inform Global database in the Library and write up a short 4 paragraph report on the topic. The article you choose should include the terms Job Satisfaction AND ANOVA, or Job Satisf

ANOVA for Fund Data

Could you please help me with the ANOVA testing for the three charts attached. I am having difficulty and would appreciate it if you could explain the process and results to me. Thank you. I appreciate your input.

Hypothesis Test ANOVA

In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Research question: Are the mean crash damages the same for these three vehicles at 95% confidence level?

Regression Statistics and ANOVA

Effectively interpret and explain this output to your immediate supervisor. Be complete, through and technically correct but do not quote or use textbook definitions per se. (See attachment)

ANOVA: Workplace Application

Please discuss an application of ANOVA that might be undertaken in a workplace. What are the 3 or more treatments? What is the response variable? Could you please describe a scenario and state the hypotheses, the decision and the meaning of the decision. Provide a step-by-step explanation.

1) One particular morning, the length of time spent in the examination rooms is recorded for each patient seen by each physician at an orthopedic clinic. Does the data prove a significant difference in mean times? 2) Perform the chi-square test for a uniform distribution. At alpha = .01, does this sample contradict the assumption that readership is uniformly distributed among these six age groups? 3) At alpha = .05, is there a difference in variances?

11.2 One particular morning, the length of time spent in the examination rooms is recorded for each patient seen by each physician at an orthopedic clinic. Does the data prove a significant difference in mean times? Time in Examination Rooms (Minutes)FIGURE 11.12 Physician 1 Physician 2 Physician 3 Physician 4 34

ANOVA: Mean Squares And The Common Population Variance

In an effort to counteract student cheating, the professor of a large class created four versions of a midterm exam, distributing the four versions among the 280 students in the class, so that each version was given to 70 students. After the exam, the professor computed the following information about the scores (the exam was wo

Regression Analysis: ANOVA test

The state wanted to see how three different math classes compared, so they gave a standardized test to all the students. Given the following results, compute the F statistic and determine whether the means are statistically the same (at alpha = 0.05) or if they are different. Class 1: 96, 90, 95, 60, 84 Class 2: 79, 83, 84, 68,

building ANOVA from sums of squares and testing a hypothesis

Given the information below calculate SST, SSR, and SSE, determine the coefficient of determination then use ANOVA and the 0.05 level in testing whether r2 is significantly different from zero. x: 4 1 4 6 least squares equation y: 381 403 394 385 y = 404.94 - 3.78x

Two way ANOVA and statistics null hypothesis

Given the following data for a two-way ANOVA, identify the sets of null and alternative hypotheses, then use the 0.05 level in testing each null hypothesis Factor B 1 2 3 1 152 158 160 Factor A 151 154 160 2 158

Variance analysis and budgets

The budget for May called for production of 9,000 units. Actual output for the month was 8,500 units with total direct materials cost of $127,500 and total direct labor cost of $77,775. The direct labor standards call for 45 minutes of direct labor per unit at a cost of $12 per direct labor-hour. The direct materials standards c

Complete an ANOVA table.

See attachment. What do I need to do to make this problem work? ------------------------------------------------------------------------------ A researcher conducted a two-factor research study using two levels of factor A and four levels of factor B with a separate sample of n = 6 subjects in each of the eight treatment co

ANOVA for grade of gasoline to use

Suppose that an automobile manufacturer designed a radically new lightweight engine and wants to recommend the grade of gasoline to use. The four grades are below regular, regular, premium, and super premium. The test car made three trial runs on the test track using each of the four grades. Assuming any grade can be used at the

Performing an F test and ANOVA table using attached data sets

Please, perform an F test for columns A (gender), B (age), and E (overall satisfaction) (in the attached spreadsheet) Please use all the data rows for each of these three columns. (from the Excel table attached) For this and any hypothesis test, I want you to number the five steps as in the book. Here are the 5 ste

Constructing and Understanding the ANOVA

Martin Motors has in stock three cars of the same make and model. The president would like to compare the gas consumption of the three cars (labeled car A, car B, and car C) using four different types of gasoline. For each trial, a gallon of gasoline was added to an empty tank, and the car was driven until it ran out of gas. The

ANOVA for Rating of Cruise Ships

Traveler conducts an annual survey in which readers rate their favorite cruise ships. Ratings are provided for small ships (carrying up to 500 passengers) medium ships (carrying 500 to 1500 passengers) and large ships (carrying a minimum of 1500 passengers). The following data shows the service ratings for eight randomly selecte

ANOVA and dependent variables

The four conditions are rock, heavy metal, country, and classical music. The dependent variable is the height of each plan after 2 weeks. The data from this experiement were examined using an ANOVA and the results are summarized in the following table. Source SS df MS Between Treatment 72 ___

Blood pressure for different age groups

Full question attached. I need help to determine the null and alterative hypotheses and when to reject the null. Also I need to know if there is sufficient evidence to support the claim that women in the different categories have different mean blood pressure levels? ================== Analysis of variance One-way ANOVA Sy

Variability - ANOVA - Mean Sum

1. Variability in a dataset may be caused by various sources. Provide an example sample dataset where are more than one sources causing its variability. Explain briefly?with one or two lines explanations of those sources. Also, calculate the sample variance for the example data set that you have provided. 2. Organize th

ANOVA hypothesis test (using Excel)

INSTRUCTIONS: Include a "summary statement" for each hypothesis test, one for the ANOVA hypothesis test, and another "summary statement" for the multiple comparison results when the ANOVA null hypothesis is rejected. FACTS: A company sells identical soap in four different packages at the same price. The sales for each pac

ANOVA Hypothesis Test and a Summary Statement

ANOVA hypothesis test and a summary statement I need up solving this problem dealing with ANOVA hypothesis test and a summary statement. I've stated the problem below and have attached an excel spread sheet containing the problem and data. INSTRUCTIONS: Include a "summary statement" for each hypothesis test, one for

Analysis of Variance (ANOVA) for Different Weight Categories

Chest Deceleration in a Car Crash. The chest deceleration data (g) 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: 55 47 59 49 42 Compact: 57 57 46 54 51 Midsize: