Answer:
ANOVA is only telling you that there is a / are differences, not which groups are different.
Explanation:
When F test statistic or Fobt is greater than the F critical value, then we reject the null hypothesis and concluded that there is difference in at least two population means, but it do not tell you that exact in which pairs there is a significant difference, so we need to use post hoc analysis for checking the paired differences.
Why must post hoc analyses be conducted when the Fobt > Fcrit? ANOVA is only telling...
In a One-Way ANOVA, it is essential to do Post-Hoc analyses (comparisons) because Group of answer choices a. The Post Hoc tells us if there is a significance between “all groups combined” while the F ratio tells us where only one difference is. b. The F ratio only tells us there is a significance between “all groups” and the Post Hoc comparisons show us where that difference is in each “pair” of groups. c. The F ratio tells us if...
Discuss why ANOVA requires post-hoc analyses, while t tests do not, and describe under what conditions a post-hoc test must be performed.
Explain the ANOVA Descriptives Test of Homogeneity of Varian Post Hoc Tests Multiple Comparisons Dependent Vantie Bench Press TSD Wan De Code Co J S ME S 23 21000 1.04808 000 Torch 47.70000 1.04308 71.92000 1.04808 95% Confidence interval Lower Bound Upper Bound 20.5000 259140 449960 504040 89 2160 746240 -20.5060 -23 21000 1.04B0B 271940 Torch Power -4770000 1 DEBOR -2449000 24 22000 100 Power -192000 10B SI -48.71000 10408 Torch -24 22000 1.04808 The mean oference is significant at...
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Comparing two means: When drink drove a student to statistics (Rubric included) Instructions For this assignment, you review this week’s Learning Resources and then perform a two-sample independent t test and an ANOVA related to the dataset that was utilized in the week 2 SPSS application assignment. Import the data into SPSS; or, if you correctly saved the data file in Week 2, you may open and use that saved file to complete this assignment. Type your answers to all...
having trouble working excel, please help Lab Assignment Each student has been assigned a unique data set, and will be required to perform basic statistical analyses on the data. Each exercise should be saved to a new file so one of your first tasks will be to make sufficient copies of your data file, named appropriately. E.g. Grant, Karen Inf Stats Ex1; Grant, Karen Inf Stats Ex2; Grant, Karen Inf Stats Ex3. All data files are taken from real data...
A study was conducted to determine if a walking plus strength training exercise program results in a significantly greater increase in aerobic capacity as compared to a walking only exercise program. Participants are randomly selected and then randomly assigned to one of the exercise groups. Participants’ aerobic endurance was assessed at the beginning of the study and, again, after 6-months of exercise. Coding for study variables: AGE—age in years SEX—1 =male, 2=female EXERCISE—1= walking and strength training; 2 = walking;...
will work with up to 3 partners (similar to a lab group) to prepare a written report which analyzes kinetic data that has been provided to you. All student groups will receive data for the hypothetical reaction aAlE) products where a is a numeric variable and A is a chemical variable. The reaction therefore has the form of a decomposition reaction, in which a single substance forms one or more new substances. For consistency, all concentrations start out at 1.000...
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(1) State the type of research design used in the Schultz et al. report. (2) State the elements or characteristics of this type of design used in the Schultz report (see textbook for designs). (3) Does the research design fit with the research purpose? Provide rationale as to why or why not. (4) What is the dependent variable and independent variable? (5) Is there a conceptual model/framework described in the report? If yes, describe briefly in a few sentences the...