Question

In the Kruskal-wallis test for the following data, what is the conclusion about the test at...

In the Kruskal-wallis test for the following data, what is the conclusion about the test at .05 significance level? Suppose that each sample include at least five observations. In addition, the hypotheses are as follows: H0 : µ1 = µ2 = µ3 H1: At least one of the population mean is different from others. Select one: A. Fail to reject H0: µ1 = µ2 = µ3. B. Reject H1: At least one of the population mean is different from others. C. Reject H0: µ1 = µ2 = µ3. D. Fail to reject H1: At least one of the population mean is different from others.

Homework Answers

Answer #1

Please don't hesitate to give a "thumbs up" for the answer in case the answer has helped you

At least one of the population mean is different from others

So, we have to reject Ho due to enough evidence.

Select one:

A. Fail to reject H0: µ1 = µ2 = µ3. - false.

B. Reject H1: At least one of the population mean is different from others. - false. we reject Ho

C. Reject H0: µ1 = µ2 = µ3.- CORRECT

D. Fail to reject H1: At least one of the population mean is different from others.- false.

Answer is C

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A Kruskal-Wallis test is conducted on and experiment that was testing three different levels of a...
A Kruskal-Wallis test is conducted on and experiment that was testing three different levels of a fertilizer on the growth of the same variety of tomatoes. Site 1 received no fertilizer, Site 2 received low levels of fertilizer, Site 3 received high levels of fertilizer. All sites were treated identically in terms of the amount they are watered, time of planting, etc. A random sample of 9 mature tomatoes is selected from each site. The weights are recorded. The output...
Students in a business statistics course performed a completely randomized design to test the strength of...
Students in a business statistics course performed a completely randomized design to test the strength of four brands of trash bags. One-pound weights were placed into a bag, one at a time, until the bag broke. A total of 24 bags, 6 for each brand, were used. The data in the accompanying table give the weight (in pounds) required to break the trash bags. Brand 1 Brand 2 Brand 3 Brand 4 32 40 33 22 38 36 33 16...
Suppose you want to use the​ Kruskal-Wallis H-test to compare the probability distributions of three populations....
Suppose you want to use the​ Kruskal-Wallis H-test to compare the probability distributions of three populations. The following data represent independent random samples selected from the three populations. Use this data to complete parts a through d below. I           II           III 36         22         72 54         20         101 63         78         89 56         40         25 84         36         81 71         42         76 46         34         a. What type of experimental design was​ used? A. Paired Difference B. Completely Randomized. C. Randomized Block b. Specify...
You have been asked to determine if two different production processes have different mean numbers of...
You have been asked to determine if two different production processes have different mean numbers of units produced per hour. Process 1 has a mean defined µ1 and process 2 has a mean defined as µ2 . the null and alternative hypotheses are as follows: H0 = µ1- µ2 = 0 H1 = µ1- µ2 > 0 Using a random sample of 25 paired observations, the sample means are 50 and 60 for population 1 and 2 respectively, test the...
Let µ1, µ2, and µ3 be the means of normal distributions with a common but unknown...
Let µ1, µ2, and µ3 be the means of normal distributions with a common but unknown variance. We want to test H0 : µ1 = µ2 = µ3 against Ha : at least two µj are different, by taking random samples of size 4 from each distributions. Let PP x1· = 28, x2· = 46, x3· = 34, and x 2 ij = 1038. (a) Construct an ANOVA table. (b) Carry out the 5% significance level test. (c) What is...
The federal government is interested in determining whether salary discrimination exists between men and women in...
The federal government is interested in determining whether salary discrimination exists between men and women in the private sector. Suppose a sample of 16 women and 25 men are taken from the population of first-level managers in the private sector. The information is summarized as follows (amounts are in thousands of dollars): Women Men n 16 25 X¯ $26.4 $33.3 S $2.6 $3.2 Test H0 : µ1 = µ2  against H1 : µ1 = µ2  where µ1  and µ2  are the mean salary of...
Test the following claim. Identify the null​ hypothesis, alternative​ hypothesis, test​ statistic, critical​ value(s), conclusion about...
Test the following claim. Identify the null​ hypothesis, alternative​ hypothesis, test​ statistic, critical​ value(s), conclusion about the null​ hypothesis, and final conclusion that addresses the original claim. A manual states that in order to be a​ hit, a song must be no longer than three minutes and thirty seconds​ (or 210 ​seconds). A simple random sample of 50 current hit songs results in a mean length of 250.0 sec. Assume the population standard deviation of song lengths is 54.5 sec....
Imagine that a friend of yours is pleased that the results of a Kruskal–Wallis test your...
Imagine that a friend of yours is pleased that the results of a Kruskal–Wallis test your friend ran as part of a dissertation turned out to be statistically significant at alpha = .05. Your friend followed up this significant result with 15 Mann–Whitney tests and found out that the results were also statistically significant at alpha = .05. Suggest one (1) overall strategy to your friend to interpret your friend's finding from the tests. Provide a rationale for your suggestion.
Four different paints are advertised to have the same drying times. Use the Kruskal Wallis Test...
Four different paints are advertised to have the same drying times. Use the Kruskal Wallis Test – Analysis of Variance by Ranks, to verify the manufacturer’s claim. Remember that seven samples were tested for each of the paints. The time in minutes until the paint was dry enough for a second coat to be applied was recorded. Below are the results. Paint 1 Rank Paint 2 Rank Paint 3 Rank Paint 4 Rank 114 112 126 115 117 118 127...
A t-test is generally used to analyze data with _____ level(s), and an ANOVA is generally...
A t-test is generally used to analyze data with _____ level(s), and an ANOVA is generally used to analyze data with _____ level(s). a.            less than two; more than two                b.            one; one or more                c.            two; more than two                d.            more than two; two                If you examined the effect of studying 0, 1, or 2 hours a day on grades, how        would you write the null hypothesis?                a.            µD = 0                b.           ...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT