Kruskal-wallis rank test

Assignment Help Basic Statistics
Reference no: EM138128

1. Nonparametric tests are used when

A. the data are normal.
B. the data are skewed.
C. the data are counts.

2. The Kruskal-Wallis rank test is a nonparametric replacement for

A. a paired t test.
B. two independent samples t test.
C. one-way ANOVA.

3. The Wilcoxon rank sum test tests a null hypothesis that

A. the two distributions have the same mean.
B. the two distributions have the same median.
C. the two distributions are the same.

4. A sample of breakfast cereals yields the following data on the grams of carbohydrates per serving.

19 23 26 21 25 28 24 23 23 13 25 26

The rank assigned to a cereal with 25 grams is
A. 8.
B. 8.5.
C. 9.

Reference no: EM138128

Questions Cloud

Other types of variables : Elucidate what other types of variables should be considered when determining what is reasonable in terms of maintenance expense.
Only one equilibrium rent : Assume in this market all apartments are identical, so there is only one equilibrium rent. Show the rent as $800 per month.
Evaluate the sum of the ranks for neighborhood : Real estate agents always say "location, location, location" is the most important thing in buying a house. We want to know if the sales prices of homes in two neighborhoods are similar. A random sample is taken from each neighborhood. The prices ..
Long-lasting drought in the first decade : With Australia going through a long-lasting drought in the first decade of the 21st century, serious concerns were raised about the possibility of running out of water.
Kruskal-wallis rank test : The Kruskal-Wallis rank test is a nonparametric replacement - The Wilcoxon rank sum test tests a null hypothesis
Person nominal income and their real income : Explain the difference between a person's nominal income and their real income. Why is real income more important to that person.
Terms of maintenance expense : What other variables should be considered when determining what is reasonable in terms of maintenance expense
Explain why the food stamp program : Explain why the food stamp program can have the same effect on the consumption pattern and well-being of recipients as an outright.
Such a price restriction : How would a law preventing landlords from charging above $900 give different results. What is such a price restriction called.

Reviews

Write a Review

Basic Statistics Questions & Answers

  What is the explanatory variable in this study

Use the list of random digits below to assign 4 men and 2 women to the shark fin treatment. Read the table from left to right, first selecting the 4 men and then the 2 women. Use the numerical labels given in the chart to the names.

  Performance in the high jump

Below is a plot of the Olympic gold medal winning performance in the high jump (in inches) for the years 1900 to 1996.

  Find the sampling distribution

Let be the average of the pay you receive for the first and second week. Find the sampling distribution

  Determine if there are patterns of either excellence or lack

These can have a large impact on tenure and promotion decisions at many institutions. One particular instructor had ratings in 3 courses in one semester as given by the table below for the statement "The instructor is an excellent teacher.

  Confidence interval estimate for the proportion

The margin of error for a 95% confidence interval estimate for the proportion of all students with cell phones is

  Examine the personal goals of children

Subjects at both sites were classified as dropouts if they left the study before the conclusion, or completers if they finished the study

  Explain the trend in the export of fish

Draw two pie charts, which allow the total yearly exports to be compared. Explain the trend in the export of fish as shown in the two pie charts.

  Find the appropriate null hypothesis for these data

Assuming the nurses surveyed were a simple random sample from the population of all nurses in the United States, find the appropriate null hypothesis for these data

  Evaluate total sum of squares

Reading highway signs is not always easy, especially if your vision is imperfect. Vision in general tends to deteriorate with age. Two researchers conducted a study to determine if the distance at which a standard highway sign could be recognized ..

  Evaluate the binomial distribution

Let X be the number of correct guesses by your friend in the 100 trials and Use the Normal approximation with the continuity correction - Which of the following might be reasonably modeled by the binomial distribution

  Determine - test the hypotheses

A bank wants to get new customers for their credit card. They try two different approaches in their marketing campaign. The first promises a "cash back" reward; the second promises low interest rates. A sample of 500 people are mailed the first br..

  Example on sampling variability

Sampling variability refers to the idea that different samples will include different individuals

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd