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Five tests of ordinal level data are presented: the sign test, the median test, the Wilcoxon signed-rank test, the Wilcoxon rank-sum test, the Kruskal-Wallis analysis of variance by ranks.
Choose one of these tests and describe in your own words, the purpose of the test, any particular assumptions or limitations pertaining to the test, and provide an example where you could employ the test.
You're asked to determine whether the workers live in the community. Your personnel department provides the following table:
Find the mean ______________ and the standard deviation _____________
Using goodness-of-fit test and.01 level of significance, find out whether accidents are evenly distributed all through the day. Write a short description of your conclusion.
Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the viewing audience in the area. In a survey of 100 viewers, 36% indicated that they watch the late evening news on this local CBS station. What is t..
Utlizing binomial approximation to normal finding the normal model. A grower claims that only 13 percent of the strawberries he grows are unsatisfactory.
Are there differences in satisfaction with Intake process of clients who admit with mental health problems, substance abuse problems, or both.
In each of the following cases, decide whether or not a binomial distribution is an appropriate model, and give your reasons.
This activity is a revision of an activity found in Real Data: A Statistics Workbook Based on Empirical Data by Z. C Holcomb (1997). Published by Pyrczak Publishing.
A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location.
Suppose the people have weights that are normally distributed with a mean of 164lb and a standard deviation of 30lb. Find the probability?
They estimated the proportion of students at the university who prefer outdoor exercise as (0.5745, 0.8217), with 95% confidence. Which of the following is an appropriate interpretation of this confidence interval?
Using this information, calculate Blpha risk (probability of Type II error) if the true population mean really is 81.
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