(In R) There were two materials (A and B )that were randomly assigned to the left and right shoes of 10boys. the data are available in R ,is a list called shoes(MASS) a)Test the Hypothesis of no difference in mean shoe wear for materials A and B. Repeat using a non parametric test. Do the two tests agree? b) Assume now that there is in fact no difference between A and B. Test the hypothesis that the mean shoe wear from right feet is greater than that from left feet. Your answer should explain how you have dealt with the L-R information for boy 4 ,which is missing.
BOY | A | B |
1 | 13.2(L) | 14.0(R) |
2 | 8.2(L) | 8.8(R) |
3 | 10.9(R) | 11.2(L) |
4 | 14.3 | 14.2 |
5 | 10.7(R) | 11.8(L) |
6 | 6.6(L) | 6.4(R) |
7 | 9.5(L) | 9.8(R) |
8 | 10.8(L) | 11.3(R) |
9 | 8.8(R) | 9.3(L) |
10 | 13.3(L) | 13.6(R) |
We randomly assign (R, L) for boy y.
Case: 1 we assign 14.3 for R and 14.2 for L and then perform Wilcoxon sign rank test.
Case: 2 we assign 14.3 for L and 14.2 for R and then perform Wilcoxon sign rank test.
(In R) There were two materials (A and B )that were randomly assigned to the left...
Super Sneaker Company is evaluating two different materials, A and B, to be used to construct the soles of their new active shoe targeted to city high school students in Canada. While material B costs less than material A, the company suspects that mean wear for material B is greater than mean wear for material A. Two study designs were initially developed to test this suspicion. In both designs, Halifax was chosen as a repres ntativ city of the targeted...
The following data represent soil water content (percentage of water by volume) for independent random samples of soil taken from two experimental fields growing bell peppers. Soil water content from field I: x1; n1 = 72 15.2 11.3 10.1 10.8 16.6 8.3 9.1 12.3 9.1 14.3 10.7 16.1 10.2 15.2 8.9 9.5 9.6 11.3 14.0 11.3 15.6 11.2 13.8 9.0 8.4 8.2 12.0 13.9 11.6 16.0 9.6 11.4 8.4 8.0 14.1 10.9 13.2 13.8 14.6 10.2 11.5 13.1 14.7 12.5...
Super Sneaker Company is evaluating two different materials, A and B, to be used to construct the soles of their new active shoe targeted to city high school students in Canada. While material B costs less than material A, the company suspects that mean wear for material B is greater than mean wear for material A. Two study designs were initially developed to test this suspicion. In both designs, Halifax was chosen as a representative city of the targeted market....
Super Sneaker Company is evaluating two different materials, A and B, to be used to construct the soles of their new active shoe targeted to city high school students in Canada. While material B costs less than material A, the company suspects that mean wear for material B is greater than mean wear for material A. Two study designs were initially developed to test this suspicion. In both designs, Halifax was chosen as a representative city of the targeted market....
Super Sneaker Company is evaluating two different materials, A and B, to be used to construct the soles of their new active shoe targeted to city high school students in Canada. While material B costs less than material A, the company suspects that mean wear for material B is greater than mean wear for material A. Two study designs were initially developed to test this suspicion. In both designs, Halifax was chosen as a representative city of the targeted market....
In Study Design 2, Super Sneaker Company drew at random two groups of 14 high school students from the Halifax school district database. After obtaining their shoe sizes, the company manufactured 14 pairs of shoes for group 1, each pair with both soles constructed from material A, and 14 pairs of shoes for group 2, each pair with both soles constructed from material B After 3 months, the amount of sole wear in each shoe was recorded in standardized units,...
Left Foot Syndrome is a rare condition in which individuals are born with two left feet if they are homozygous for a recessive r allele (w) genotype, those who are heterozygous (Rr) and homorygous (RR) are born with correct set of feet one right foot and one left foot. However because people wear shoes, the actual number of double left foot people are not known. Last year, there were 38,972 deaths in the population and of those 117 individuals were...
In Study Design 2, Super Sneaker Company drew at random two groups of 15 high school students from the Halifax school district database. After obtaining their shoe sizes, the company manufactured 15 pairs of shoes for group 1, each pair with both soles constructed from material A, and 15 pairs of shoes for group 2, each pair with both soles constructed from material B. After 3 months, the amount of sole wear in each shoe was recorded in standardized units,...
In Study Design 2, Super Sneaker Company drew at random two groups of 14 high school students from the Halifax school district database. After obtaining their shoe sizes, the company manufactured 14 pairs of shoes for group 1, each pair with both soles constructed from material A, and 14 pairs of shoes for group 2, each pair with both soles constructed from material B. After 3 months, the amount of sole wear in each shoe was recorded in standardized units,...
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