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 are independent random samples selected from the three populations:
I: 66, 23, 55, 88, 58, 62, 79, 49
II: 19, 31, 16, 29, 30, 33, 40
III: 75, 96, 102, 75, 98, 78
- What type of experimental design was used?
- Specify the null and alternative hypotheses you would test.
- Specify the rejection region you would use for your hypothesis test at α = .01.
- Conduct the test at α = .0
Homework Answers
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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 thr...
Suppose you want to use the Kruskal-Wallis H-test to compare the probability distributions of three populations. The following are independent random samples selected from the three populations: l: 66, 23, 55, 88, 58, 62, 79,49 Il: 19, 31, 16, 29, 30, 33, 40 IlIl: 75, 96, 102, 75, 98, 78 a. What type of experimental design was used? b. Specify the null and alternative hypotheses you would test. c. Specify the rejection region you would use for your hypothesis test...
Consider the below matrixA, which you can copy and paste directly into Matlab.
Problem #1: Consider the below matrix A, which you can copy and paste directly into Matlab. The matrix contains 3 columns. The first column consists of Test #1 marks, the second column is Test # 2 marks, and the third column is final exam marks for a large linear algebra course. Each row represents a particular student.A = [36 45 75 81 59 73 77 73 73 65 72 78 65 55 83 73 57 78 84 31 60 83...
Question 9-15 are based on the random sample below which is obtained to test the following hypoth...
Question 9-15 are based on the random sample below which is obtained to test the following hypothesis about the population mean. Test the hypothesis that the mean is less than 80. 80 100 81 93 80 57 98 90 71 56 58 78 59 55 55 77 72 78 56 94 98 59 93 86 89 62 60 66 59 71 96 97 94 69 64 77 87 77 64 90 90 95 98 99 56 69 72 81 95...
1. Forecast demand for Year 4. a. Explain what technique you utilized to forecast your demand....
1. Forecast demand for Year 4.
a. Explain what technique you utilized to forecast your
demand.
b. Explain why you chose this technique over others.
Year 3 Year 1 Year 2 Actual Actual Actual Forecast Forecast Forecast Demand Demand Demand Week 1 52 57 63 55 66 77 Week 2 49 58 68 69 75 65 Week 3 47 50 58 65 80 74 Week 4 60 53 58 55 78 67 57 Week 5 49 57 64 76 77...
Suppose you want to compare two treatments, A and B
Suppose you want to compare two treatments, A and B. Use the Wilcoxon rank-sum test to determine whether the distribution for population B is shifted to the right of the distribution for population A.a. Specify the null and alternative hypotheses you would test.b. Suppose you obtained the independent random samples of observations on experimental units subjected to the two) treatments shown in the table to the right. Conduct a test of the hypotheses described in part a. Test using α=0.025...
30 21 == ននន 22 Suppose you want to compare two treatments, A and B. Use...
30 21 == ននន 22 Suppose you want to compare two treatments, A and B. Use the Wilcoxon rank sum test to determine whether the distribution for population is shifted to the left of the distribution for population Sample Sample a. Specify the null and alternative hypotheses you would test. b. Suppose you obtained the independent random samples of observations on experimental units subjected to the two treatments shown in the table to the night. Conduct atest of the hypotheses...
Use the accompanying data set on the pulse rates (in beats per minute) of males to...
Use the accompanying data set on the pulse rates (in beats per minute) of males to complete parts (a) and (b) below. LOADING... Click the icon to view the pulse rates of males. a. Find the mean and standard deviation, and verify that the pulse rates have a distribution that is roughly normal. The mean of the pulse rates is 71.871.8 beats per minute. (Round to one decimal place as needed.) The standard deviation of the pulse rates is 12.212.2...
Using simple regression, determine whether test scores are significantly related to sales performance. Use significance level...
Using simple regression, determine whether test scores are
significantly related to sales performance. Use significance level
of 0.05%. Clearly interpret the slope (beta coefficient) and the
adjusted R squared value you obtained.
Using multiple regression, determine whether test scores and
number of months are significantly related to sales performance.
Use significance level of 0.05%. Clearly interpret the slopes (beta
coefficients) and the adjusted R squared value you obtained.
E ៥ដង А B c D 1 DATA SET FOR SALESFORCE PROBLEM...
A sample of number of NFL injuries including Concussion, ACL tears, MCL tears and PCL tears...
A sample of number of NFL injuries including Concussion, ACL
tears, MCL tears and PCL tears from 1999 to 2019 are as follows 1
:
4- Conduct an Analysis of Variance for the four groups
concussion, ACL, MCL and PCL. (alpha=1%)
PCL Year 1999 2000 2001 2002 2003 2004 2005 2006 MCL 95 102 125 123 98 130 85 93 78 81 145 137 65 102 96 105 83 75 78 2007 2008 2009 2010 NFL Injuries Concussion ACL 185...
A teacher decided to test the effect of sound when students were studying Students in de...
A teacher decided to test the effect of sound when students were studying Students in de were randomly assigned into three groups of eight. All groups where when the same material and 30 minutes to study prior to being given a quiz. One group was exposed to consistent background music, one group was exposed to a soundtrack of minor construction work where the volume fluctuated and the third group was left in quiet to study. The teacher believes a constant...
Suppose you want to use the Kruskal-Wallis H-test to compare the probability distributions of three populations. The following are independent random samples selected from the three populations: l: 66, 23, 55, 88, 58, 62, 79,49 Il: 19, 31, 16, 29, 30, 33, 40 IlIl: 75, 96, 102, 75, 98, 78 a. What type of experimental design was used? b. Specify the null and alternative hypotheses you would test. c. Specify the rejection region you would use for your hypothesis test...
1. Forecast demand for Year 4.
a. Explain what technique you utilized to forecast your
demand.
b. Explain why you chose this technique over others.
Year 3 Year 1 Year 2 Actual Actual Actual Forecast Forecast Forecast Demand Demand Demand Week 1 52 57 63 55 66 77 Week 2 49 58 68 69 75 65 Week 3 47 50 58 65 80 74 Week 4 60 53 58 55 78 67 57 Week 5 49 57 64 76 77...
Suppose you want to compare two treatments, A and B. Use the Wilcoxon rank-sum test to determine whether the distribution for population B is shifted to the right of the distribution for population A.a. Specify the null and alternative hypotheses you would test.b. Suppose you obtained the independent random samples of observations on experimental units subjected to the two) treatments shown in the table to the right. Conduct a test of the hypotheses described in part a. Test using α=0.025...
30 21 == ននន 22 Suppose you want to compare two treatments, A and B. Use the Wilcoxon rank sum test to determine whether the distribution for population is shifted to the left of the distribution for population Sample Sample a. Specify the null and alternative hypotheses you would test. b. Suppose you obtained the independent random samples of observations on experimental units subjected to the two treatments shown in the table to the night. Conduct atest of the hypotheses...
Using simple regression, determine whether test scores are
significantly related to sales performance. Use significance level
of 0.05%. Clearly interpret the slope (beta coefficient) and the
adjusted R squared value you obtained.
Using multiple regression, determine whether test scores and
number of months are significantly related to sales performance.
Use significance level of 0.05%. Clearly interpret the slopes (beta
coefficients) and the adjusted R squared value you obtained.
E ៥ដង А B c D 1 DATA SET FOR SALESFORCE PROBLEM...
A sample of number of NFL injuries including Concussion, ACL
tears, MCL tears and PCL tears from 1999 to 2019 are as follows 1
:
4- Conduct an Analysis of Variance for the four groups
concussion, ACL, MCL and PCL. (alpha=1%)
PCL Year 1999 2000 2001 2002 2003 2004 2005 2006 MCL 95 102 125 123 98 130 85 93 78 81 145 137 65 102 96 105 83 75 78 2007 2008 2009 2010 NFL Injuries Concussion ACL 185...
A teacher decided to test the effect of sound when students were studying Students in de were randomly assigned into three groups of eight. All groups where when the same material and 30 minutes to study prior to being given a quiz. One group was exposed to consistent background music, one group was exposed to a soundtrack of minor construction work where the volume fluctuated and the third group was left in quiet to study. The teacher believes a constant...
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