Consider a completely randomized design with five treatments, A, B, C, D, and E. The ANOVA F-test revealed significantdifferences among the means. A multiple comparisons procedure was used to compare all possible pairs of treatmentmeans at x = 0.05. The ranking of the five treatment means is summarized in each part below. Identify which pairs ofmeans are significantly different.a. BCA DEC. B C A DEUa. Identify which pairs of means are significantly different. Select all that apply.b. B CADEd. B C A DEA. B and AC. C and DE. B and CG. B and DI. D and EB. C and AD. A and EF.C and EH. A and DB and EJ.

There are five treatments A, B, C, D and E.ANOVA test revealed significant differences among the…

Answered: Consider a completely randomized design…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 39 of the 44 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 95 of the 112 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below.
Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 42 of the 48 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 93 of the 109 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below.
The Bureau of Labor Statistics reports that the official unemployment rate for Black people was 10.4% and 4.7% for White people in February 2015. Select all correct answers for this question. O The samples of white and black people are independent. The explanatory variable is the unemployment rate. The response variable is the unemployment rate. The response variable is race.
For each scenario listed below, determine whether the scenario represents an Independent Samples or Dependent Samples (Matched Pairs) situation by placing the appropriate letter in the box provided. a. Comparing pre-test scores before training to post-test scores: OIndependent Samples OMatched Pairs b. Comparing the number of speeding tickets received by men to the number received by women: OIndependent Samples Matched Pairs c. Comparing pain levels of a group receiving a placebo to a group receiving a medicine: Independent Samples OMatched Pairs d. Comparing pain levels before and after treatment with magnetic therapy: Independent Samples OMatched Pairs
An epidemiologist wants to evaluate the most effective method to teach the public about preventative health. They compare the following 3 treatments; posters with information about healthy habits, social media posts about healthy habits, and TV commercials suggesting healthy habits. Which of the following tests is appropriate for this study? a. Independent Measures t-test (between subjects) b. ANOVA c. Two-Factor ANOVA d. Repeated Measure t-test (within-subjects)
A large department store examined a sample of the 21 credit card sales and recorded the amounts charged for each of three types of credit cards: MasterCard, Visa, and Discover. Six MasterCard sales, seven Visa, and eight Discover sales were recorded. The store used an ANOVA to test if the mean sales for each credit card were equal. What are the degrees of freedom for the F statistic?
Acne is a common skin disease that affects most adolescents and can continue into adulthood. A study compared the effectiveness of three acne treatments and a placebo, all in gel form, applied twice daily for 12 weeks. The study's 517 teenage volunteers were randomly assigned to one of the four treatments. Success was assessed as clear or almost clear skin at the end of the 12 week period. The results of the study can be seen in the table below. Using the appropriate statistical test, determine if there is significant evidence that the four treatments perform differently. If so, how do they compare.
A repeated-measures ANOVA produces SSbetween treatments = 25 and MSbetween treatments = 5. In this analysis, how many treatment conditions are being compared? Select one: a. 2 b. 6 c. 5 d. 4
A scientist is studying the effect of a new type of exercise program on cardiovascular health. The scientist randomly assigns individuals to either the exercise program or a control group. The scientist wants to determine if the exercise program has a statistically significant effect on cardiovascular health. The scientist monitors cardiovascular health by measuring the blood pressure of each individual. The type of program the individual experienced is which of the following? (Select all that apply) The Explanatory Variable Ordinal The Response Variable Categorical Binary Quantitative Categorical
which statistical analysis correctly analyzes the repeated measures (also known as within subjects) design?

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