User Account

All Pages

Significant difference among treatments

Assignment Help Basic Statistics
Reference no: EM131869981

1. Why would you expect an F ratio of about 1, and departures from this only due to chance, if there was no significant difference among treatments analysed by a single-factor ANOVA?

2. The following simple set of data is for three 'treatments' each of which contains four replicates: Treatment A: 1, 2, 3, 4; Treatment B: 2, 3, 4, 5; Treatment C: 3, 4, 5, 6. The means of the three samples are similar and there is some within group (error) variance around each treatment mean. Use a statistical package to run a single-factor ANOVA on these data.

(a) Is there a significant difference among treatments?

(b) What are the within group (error) sum of squares and mean square? Change the values for Treatment C to 21, 22, 23 and 24, and run the analysis again.

(c) Is there a significant difference among groups?

(d) Have the within group (error) sum of squares and mean square changed from the analysis in (a)? Can you explain why?

Reference no: EM131869981

Questions Cloud

Expect the value of the t statistic : (a) What would you expect the value of the t statistic to be? Run the analysis to check on this.
Calculate rogue outdoor break-even point in units : These questions are designed to demonstrate understanding of pricing covered in chapter 10 and to prepare you for questions on the next exam.
Depending on sample size : 1. Comment on the following: ‘Depending on sample size, a nonsignificant result in a statistical test may not necessarily be correct.'
Disadvantages of each type of branding strategy : How should a company decide whether Individual or Family branding is best for a given product? What are some advantages/disadvantages of each type of branding.
Significant difference among treatments : Is there a significant difference among treatments?What are the within group (error) sum of squares and mean square? Change the values for Treatment C to 21, 22
Describes the type of duties you carried out that day : Put this information in Bold Font. Write a paragraph that describes the type of duties you carried out that day.
Took a sample of ten adult trout : A fisheries biologist was interested in testing the specific hypothesis that the mean size of adult trout varied among Lake Veronica
Determine the advertising strategy : Select one advertisement that you have viewed in the last week or so. Briefly describe the advertisement and where you viewed it.
Significant difference among varieties : (a) Does a singlefactor ANOVA show a significant difference among varieties?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Suppose that when a 70 earthquake hits it will destroy each

suppose that when a 7.0 earthquake hits it will destroy each highway independently with probability p 03. a town

  How do we convert a scale variable into an ordinal one

When the data on at least one variable are ordinal, the data on any scale variable must be converted from scale to ordinal. How do we convert a scale variable into an ordinal one?

  Average number of races a horse enters

A veterinarian collects data on the number of times race horses are raced during their career. The researcher finds the average number of races a horse enters

  Calculate the sample proportion for each color

Assume you are in charge of a production line which allows for no more than 1% defectives in order to be in compliance. A random sample of 500 is tested and 4 defective items are found. Find the probability of getting exactly 4 defectives out of..

  Summarize the data using all of the techniques

Find a data set consisting of at least 25 numbers relating to a firm or industry group of interest to you. Summarize the data using all of the techniques.

  Role of the cr in the programs

What is the role of the cr in the programs used in this lab? What is the role of LF In the programs used in this lab? What happens if you remove the CR from the program in activity 1?

  Critical value approach to test the hypothesis

Discover Card would like to set α = 0.05. Define Population 1 as Dallas and Population 2 as Houston and use the critical value approach to test this hypothesis.

  Chances less than three children catch measles in minnesota

In recent years, 3.4 children per year get sick with measles in Minnesota. If a recent year is taken at random, what is the probability that:

  List ho and ha note remember you are not testing the mean

a state school administrator says that the standard deviation of test scores for eighth grade students who took a u.s.

  Using the emperical rule what is the approximate percentage

heights of men on a baseball team have a bell-shaped distribution with a mean of 169 cm and a standard deviation of 5

  Consider problem 571 regarding telephone calls made

consider problem 5.71 regarding telephone calls made independently of each other. find an example through a web search

  Appropriate inference method

If Weight 1 is the weight (in pounds) of a random sample of five men who were accepted as models, and Weight 2 is the weight (in pounds) of a random sample of five men who were rejected as models, which of the following is the appropriate inferenc..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd