An ANOVA provides the following data: Group A's mean is 17.59; group B's mean is 15.74; group C's mean is 14.91; HSD is 2.77 What are the significant differences between these conditions? O There are no significant differences among these group means. Group A has a significantly higher mean than group B and group C; group B has a significantly higher mean than group C. O Group A has a significantly higher mean than group B and group C; there is no significant difference between group B's and C's means. O Groups A and B do not significantly differ, but they are both significantly higher than group C.

An ANOVA provides the following data: Group A's mean is 17.59; group B's mean is 15.74; group C's mean is 14.91; HSD is 2.77 What are the significant differences between these conditions? O There are no significant differences among these group means. Group A has a significantly higher mean than group B and group C; group B has a significantly higher mean than group C. O Group A has a significantly higher mean than group B and group C; there is no significant difference between group B's and C's means. O Groups A and B do not significantly differ, but they are both significantly higher than group C.

Name: An ANOVA provides the following data:Group A's mean is 17.59; group B
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: An ANOVA provides the following data:Group A's mean is 17.59; group B's mean is 15.74; group C's mean is 14.91; HSD is2.77What are the significant differences between these conditions?O There are no significant differences among these group means.Gr

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

9.2.6 The British Department of Transportation studied to see if people avoid driving on Friday the 13th. They did a traffic count on a Friday and then again on a Friday the 13th at the same two locations ("Friday the 13th," 2013). The data for each location on the two different dates is in table #9.2.6. Estimate the mean difference in traffic count between the 6th and the 13th using a 90% level. Table #9.2.6: Traffic Count Dates 6th 13th 1990, July 139246 138548 1990, July 134012 132908 1991, September 137055 136018 1991, September 133732 131843 1991, December 123552 121641 1991, December 121139 118723 1992, March 128293 125532 1992, March 124631 120249 1992, November 124609 122770 1992, November 117584 117263
4. Suppose the National Transportation Safety Board (NTSB) wants to examine the safety of compact cars, midsize cars, and full-size cars. It collects a sample of three for each of the treatments (cars types). Using the hypothetical data provided below, test whether the mean pressure applied to the driver's head during a crash test is equal for each types of car. Use a = .05. Use a post hoc test to determine which pairs of mean are significantly different. Explain in what way are they different. Car: Compact Midsize Full-size 1 643 469 484 655 427 456 3. 702 525 402 666.67 473.67 447.33 31.18 49.17 41.68 SS 1944.39 4835.38 3474.45 Source SS df MS F Between 86049.556 43024.778 25.1749 Within 10254.22 6. 1709.0367 Total 96303.776 8. 2.
If the difference in means of two data sets is not zero, does that imply that on average the two variables are significantly different?
2. In studying the effect of a drug for treating patients with respiratory problems, a researcher obtained a sample of 12 consenting patients, who, after discussion with their doctor, chose a respiratory drug they would receive. Patients' respiratory tests were assessed twice over a two-month period after initiating the treatment. Research question: The researcher wants to know if there is a significant difference between the group in their second test and those that didn't take the drug in their overall mean of 3.35 in average respiratory scores with a standard deviation of .08. Is there a difference between the two means - does the drug work? Carry out 9 steps of hypothesis testing. Respiratory Test 2 3.4 3.4 3.3 3.4 3.3 3.3 3.3 3.2 3.2 3.2 3.2 3.3 Σ-39.5
A department-store chain randomly sampled 10 stores in a state. After a review of sales records, it was found that, compared with the same period last year, the following percentage increases in dollar sales had been achieved over the Christmas period this year:10.2 3.1 5.9 7.0 3.72.9 6.8 7.3 8.2 4.3a. Calculate the mean percentage increase in dollar sales. b. Calculate the median.
a) Present descriptive statistic measures of central tendency from the data set provided b) Describe how you will perform a correlation test c) Calculation of break-even point for mask production/sale in the vicinity. Can a break- even point be achieved in a period of three months by selling less than 200 masks
The CEO of a small company earns $400,000 per year, and the 10 employees each earn $50,000 per year. Which of the measures of central tendency of data ( shown below) is strongly affected by the CEO's salary? why? a) the mean b) the median c) the mode d) none of the above
The following data were obtained from an independent measures research study comparing three treatment conditions. Use an ANOVA with = .05 to determine whether there are any significant mean differences among the treatments. TREATMENT I II III 5 2 7 1 6 3 2 2 2 3 3 4 0 5 5 1 3 2 2…
After finding the mean, median, SD and CV, what can be concluded about the performance characteristics of the analysis?
Which of the following is considered a biased estimator? variance proportion median mean
If the shape of the distribution is symmetrical and the data set has mean = 13, and Median = 12.2, which of the following is the most likely value for the mode of the the data set?
What is the primary use of the One - Way ANOVA model? a. To compare variance of groups b. To test linearity of group mean c. To compare group means d. To test variance of the overall mean