Discuss in general the use of the Sign Test for Matched Pairs, Rank-Sum Test and the...
Discuss in general the use of the Sign Test for Matched Pairs, Rank-Sum Test and the Spearman Rank Correlation Test.
Homework Answers
Sign test is a non parametric test that used to compare two related samples, matched pairs, rank-sum or repeated measurements on a single sample to assess whether their population mean ranks differ. It is a non parametric test while spearman rank correlation test is also a non parametric test but it is similar to Karl Pearson product moment correlation. It is used to measure strength of association between two variables.
Add Answer to:
Discuss in general the use of the Sign Test for
Matched Pairs, Rank-Sum Test and the...
Please help. Thanks. Use the Wilcoxon matched-pairs signed rank test to determine whether there is a...
Please help. Thanks. Use the Wilcoxon matched-pairs signed rank test to determine whether there is a significant difference between the related populations represented by the data below. Assume a 5% level of significance and (differences = before - after). Before After 5.6 6.4 1.3 1.5 4.7 4.6 3.8 4.3 2.4 2.1 5.5 6.0 5.1 5.2 4.6 4.5 3.7 4.5 What is the value of T-? 36.5 is wrong What is the value of T+? 8.5 is wrong What is the test statistic, T? 5 is wrong Using the table of...
4. A market analysis wishes to see whether consumers have any preference between five different flavors...
4. A market analysis wishes to see whether consumers have any preference between five different flavors of chewing gum. A sample of 100 people provided the data below. Does enough evidence exist to reject the claim that no preference exists in the selection of chewing gum flavors? (10 points) Observed Expected 32 20 28 20 Frequency Mint Bubble Gum Strawberry Grape Orange 16 20 14 20 10 20 5. A medical researcher wishes to see whether the variance of the...
Which test is used for independent data? A. wilcoxon signed-rank test B. wilcoxon rank sum test...
Which test is used for independent data? A. wilcoxon signed-rank test B. wilcoxon rank sum test C. paired t test D. sign test
Use the Wilcoxon signed-ranks test to test the claim that the matched pairs have differences x...
Use the Wilcoxon signed-ranks
test to test the claim that the matched pairs have differences
x y
67 65.2
69 60.4
68 67.5
68 65.0
63 62.1
69 68.3
67 71.2
60 65.6
66 64.5
61 67.4
71 60.9
71 61.3
2. If given matched pair data and “Ranked” differences, then Sum pos ranks = 288 and...
2. If given matched pair data and “Ranked” differences, then Sum pos ranks = 288 and Sum Momeg. Hanks = 200 and n=31, Find the signed ranks test-statistic for matched pairs.
Answer the question True or False. 15) The Wilcoxon rank sum test is used to test...
Answer the question True or False. 15) The Wilcoxon rank sum test is used to test the hypothesis that the probability distributions associated with two populations are equivalent. A) True B) False 16) The Wilcoxon rank sum test is recommended for comparing discrete distributions. A) True B) False 17) 17) When performing a rank test comparing two populations, we rank the sample observations from both populations as though they were drawn from the same population. A) True B) False 18)...
help 15. 6 pts. Use the Wilcoxon Rank Sum Test for Small Samples to test the...
help
15. 6 pts. Use the Wilcoxon Rank Sum Test for Small Samples to test the claim that 0.10 the following gasoline prices (in US Dollars) in two provinces differ at the α significance level: . Province 1: 2.19, 2.15, 2.36, 2.25, 2.10, 2.29 . Province 2: 2.27, 2.36, 2.45, 2.39, 2.28
1. You are performing a left-tailed matched-pairs test with 11 pairs of data. If α=.01α=.01, find...
1. You are performing a left-tailed matched-pairs test with 11
pairs of data.
If α=.01α=.01, find the critical value, to two decimal places.
2.You wish to test the following claim (HaHa) at a significance
level of α=0.10α=0.10.
Ho:p1=p2Ho:p1=p2
Ha:p1>p2Ha:p1>p2
You obtain 72 successes in a sample of size n1=306n1=306 from the
first population. You obtain 137 successes in a sample of size
n2=633n2=633 from the second population. For this test, you should
NOT use the continuity correction, and...
Use the Rank-Sum Test comparing prices of Red Sox and White Sox tickets. 4. Use the...
Use the Rank-Sum Test comparing prices of Red Sox and White Sox
tickets.
4. Use the Pankurn Test comparing prices of Red Son and White So tickets, Red Sox: 12 14 17 12 20 25 25 20 18 16 White Sox 10 14 22 19 ? 11 17 a) State the Mull Hypothesis: b) Compute the test-statistic: c) Compute the P-value
4. A market analysis wishes to see whether consumers have any preference between five different flavors of chewing gum. A sample of 100 people provided the data below. Does enough evidence exist to reject the claim that no preference exists in the selection of chewing gum flavors? (10 points) Observed Expected 32 20 28 20 Frequency Mint Bubble Gum Strawberry Grape Orange 16 20 14 20 10 20 5. A medical researcher wishes to see whether the variance of the...
Use the Wilcoxon signed-ranks
test to test the claim that the matched pairs have differences
x y
67 65.2
69 60.4
68 67.5
68 65.0
63 62.1
69 68.3
67 71.2
60 65.6
66 64.5
61 67.4
71 60.9
71 61.3
2. If given matched pair data and “Ranked” differences, then Sum pos ranks = 288 and Sum Momeg. Hanks = 200 and n=31, Find the signed ranks test-statistic for matched pairs.
Answer the question True or False. 15) The Wilcoxon rank sum test is used to test the hypothesis that the probability distributions associated with two populations are equivalent. A) True B) False 16) The Wilcoxon rank sum test is recommended for comparing discrete distributions. A) True B) False 17) 17) When performing a rank test comparing two populations, we rank the sample observations from both populations as though they were drawn from the same population. A) True B) False 18)...
help
15. 6 pts. Use the Wilcoxon Rank Sum Test for Small Samples to test the claim that 0.10 the following gasoline prices (in US Dollars) in two provinces differ at the α significance level: . Province 1: 2.19, 2.15, 2.36, 2.25, 2.10, 2.29 . Province 2: 2.27, 2.36, 2.45, 2.39, 2.28
1. You are performing a left-tailed matched-pairs test with 11
pairs of data.
If α=.01α=.01, find the critical value, to two decimal places.
2.You wish to test the following claim (HaHa) at a significance
level of α=0.10α=0.10.
Ho:p1=p2Ho:p1=p2
Ha:p1>p2Ha:p1>p2
You obtain 72 successes in a sample of size n1=306n1=306 from the
first population. You obtain 137 successes in a sample of size
n2=633n2=633 from the second population. For this test, you should
NOT use the continuity correction, and...
Use the Rank-Sum Test comparing prices of Red Sox and White Sox
tickets.
4. Use the Pankurn Test comparing prices of Red Son and White So tickets, Red Sox: 12 14 17 12 20 25 25 20 18 16 White Sox 10 14 22 19 ? 11 17 a) State the Mull Hypothesis: b) Compute the test-statistic: c) Compute the P-value
Most questions answered within 3 hours.
-
1) Use the Euclidean algorithm (write in pseudocode) to find the
greatest common divisor of 8...
asked 8 minutes ago -
Based upon the corporate proposal for this week, research three
different data storage options for your...
asked 9 minutes ago -
The equilibrium constant, Kp , for the following reaction is
1.04×10-2 at 548 K. NH4Cl(s) NH3(g)...
asked 29 minutes ago -
During a recent budgeting discussion, the CFO at "NW Accounting
Services" proposed eliminating the marketing research...
asked 27 minutes ago -
Block B has a mass of 3.80kg and is moving to the left at a
speed...
asked 31 minutes ago -
If n distinct objects are distributed randomly into
n distinct boxes, what is the probability that:...
asked 33 minutes ago -
a) The frequency of light coming out from a laser source is 297
MHz. What is...
asked 55 minutes ago -
LABORATORY EXERCISES:
Using nested for loops, write a java program to print the
pattern as shown...
asked 54 minutes ago -
Assume that the correlation coefficient between achievement test
scores (X) and grade point averages (Y) among...
asked 1 hour ago -
In Chapter 1 titled "So Close and Yet So Different", in "Why
Nations Fail" authors bring...
asked 1 hour ago -
Leadership Philosophy
Write a two-page paper identifying your personal leadership
philosophy based on your new perspective...
asked 1 hour ago -
Which of these function correctly defines the function g(),
which should return a pointer to a...
asked 1 hour ago