Question

Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of...

Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of 20 people who used the programs provided the following data.

Program
A B C
540 450 600
400 540 630
490 400 560
530 420 490
490 460 590
620 380 610
550 580

Use the Kruskal-Wallis test to determine whether there is a significant difference among the three test preparation programs. Use α = 0.05.

Find the value of the test statistic. (Round your answer to two decimal places.)

Find the p-value. (Round your answer to three decimal places.)

p-value =

Need help with this tonight if possible. Thank you

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Applying Kruskal Wallis test:

value of the test statistic =8.73

p value =0.013

since p value >0.05 ; we reject null hypothesis

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of...
Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of 20 people who used the programs provided the following data. Program A B C 510 450 600 400 510 620 470 400 560 520 430 470 470 460 570 630 390 640 550 590 Use the Kruskal-Wallis test to determine whether there is a significant difference among the three test preparation programs. Use α = 0.05. Find the p-value. (Round your answer to three...
Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of...
Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of 20 people who used the programs provided the following data. Program A B C 530 450 600 400 530 640 470 400 590 540 420 470 470 490 570 620 380 610 550 580 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value =   Forty-minute workouts of one...
Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of...
Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of 20 people who used the programs provided the following data. Program A B C 540 450 600 400 540 630 480 400 570 530 410 480 480 470 580 610 360 620 550 560 Use the Kruskal-Wallis test to determine whether there is a significant difference among the three test preparation programs. Use α = 0.05. State the null and alternative hypotheses. H0: Not...
A sample of 15 consumers provided the following product ratings for three different products. Five consumers...
A sample of 15 consumers provided the following product ratings for three different products. Five consumers were randomly assigned to test and rate each product. Product A B C 56 86 66 62 93 43 73 91 36 41 88 51 63 96 58 Use the Kruskal-Wallis test and α = 0.05 to determine whether there is a significant difference among the ratings for the products. Find the value of the test statistic._____ Find the p-value. (Round your answer to...
Males Females 620 660 570 590 540 540 580 560 590 610 580 590 480 610...
Males Females 620 660 570 590 540 540 580 560 590 610 580 590 480 610 620 650 570 600 610 620 590 630 570 640 610 590 590 640 570 580 550 560 530 570 560 560 620 600 520 600 560 590 620 590 580 590 610 630 530 560 480 600 590 560 620 560 590 560 580 560 NOTE: use Excel and submit screenshots and directions on how to do it on excel These are the...
Perform a one-sample t-test to determine if the average quantitative GRE score is significantly lower than...
Perform a one-sample t-test to determine if the average quantitative GRE score is significantly lower than 600 (use α = 0.05).  Be sure to report the test statistic and p-value. ID Gender Ethnicity Age Science Type Student Status Verbal GRE Quantitative GRE Analytic GRE College GPA Graduate GPA 1 Female White 24 Social Full Time 450 500 550 3.14 3.42 2 Female White 25 Social Full Time 480 580 450 3.11 3.34 3 Female White 30 Social Full Time 610 650...
Create two new columns that separate the analytic GRE scores into males and females ID Gender...
Create two new columns that separate the analytic GRE scores into males and females ID Gender Ethnicity Age Science Type Student Status Verbal GRE Quantitative GRE Analytic GRE College GPA Graduate GPA 1 Female White 24 Social Full Time 450 500 550 3.14 3.42 2 Female White 25 Social Full Time 480 580 450 3.11 3.34 3 Female White 30 Social Full Time 610 650 680 3.62 3.79 4 Female White 30 Social Full Time 540 550 560 3.15 3.46...
1: Sample:    Gender Verbal Math f 630 660 m 610 550 f 680 660 m...
1: Sample:    Gender Verbal Math f 630 660 m 610 550 f 680 660 m 490 390 f 510 520 m 700 700 f 640 710 f 520 470 f 530 500 m 640 570 f 710 700 f 630 520 f 670 580 f 630 610 m 360 290 f 540 490 f 490 560 m 730 760 m 760 700 f 530 670 m 710 700 f 630 610 f 530 490 f 420 410 f 490...
Some students are good in mathematics and others are better at reading or writing. The question...
Some students are good in mathematics and others are better at reading or writing. The question is whether there is any relationship between a student’s ability in math and his/her ability in reading or writing. The SAT, a standardized test for college admissions that is widely used in the United States, has three sections, Math, Critical Reading, and Writing. The table below contains SAT Math, Writing, and Critical Reading test scores for 20 randomly chosen students accepted by a university....
An SAT prep course claims to improve the test score of students. The table below shows...
An SAT prep course claims to improve the test score of students. The table below shows the scores for seven students the first two times they took the verbal SAT. Before taking the SAT for the second time, each student took a course to try to improve his or her verbal SAT scores. Do these results support the claim that the SAT prep course improves the students' verbal SAT scores? Let d=(verbal SAT scores prior to taking the prep course)−(verbal...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT