The numerical value of the wilcoxon signed rank test

Reference no: EM138159

1. A pediatrician is interested in studying the effect of Motrin on reducing temperature in young children. Four children with influenza have their temperatures taken immediately before and then 20 minutes after taking a standard dose of Motrin with the following results:

2370_The numerical value of the Wilcoxon signed rank test.png

The numerical value of the Wilcoxon signed rank test W+ computed on these data is

A. W⁺ = 1.
B. W⁺ = 11.
C. W⁺ = 25.

2. A researcher is interested in comparing SAT scores for students enrolled in public schools, private schools, and those home schooled. She selects a random sample of 20 high school students from each group and administers the SAT score to them. To see if the threshold sizes were systematically higher for some age groups than others, the data were ranked and the value of the Kruskal-Wallis statistic H = 4.72 was obtained. Using the chi-square approximation, the P-value for the test is

A. between 0.025 and 0.050.
B. between 0.050 and 0.100.
C. greater than 0.100.

Reference no: EM138159

Questions Cloud

Distribution interval or a bootstrap percentile interval : An advantage of the permutation test over the t test for a difference in means is that - distribution interval or a bootstrap percentile interval

Rival from cloning your product : What would you do if patent law prevented your rival from cloning your product.

Bias of a statistic refers to : The mean of a sample is 22.5. The mean of 1000 bootstrapped samples is 22.491. The bias of the bootstrap mean is

The bootstrap method of inference relies on : A permutation resample for a two-sample test

The numerical value of the wilcoxon signed rank test : A pediatrician is interested in studying the effect of Motrin on reducing temperature in young children. Four children with influenza have their temperatures taken immediately before and then 20 minutes after taking a standard dose

Heart rate at the end of the workout for all subjects : Makers of generic drugs are required to demonstrate that their generic drug does not differ significantly from the "reference" drug it is intended to imitate.

Quantity will result once the patent expires : Illustrate what cost as well as quantity will result once the patent expires and competition emerges in this market.

Increase demand for the company : Should a company hire temporary workers or hire new workers to handle increase demand for the company's product.

Firm views that price as beyond its control : Suppose production price is 20. The firm views that price as beyond its control.

User Account

All Pages