Consider an experiment withfour groups, with five values ineach. For the ANOVA summarytable shown to the right, fill in allthe missing results.Degrees of Sum ofMeanSource Freedom Squares Square (Variance)c-1=?SSA = ?AmonggroupsWithinSourceAmong groups c-1=Within groupsn-c=Totaln-1=(Simplify your answers.)groupsTotalComplete the ANOVA summary table below.Degrees ofFreedomn-c=? SSW = 176n-1=?SST = ?Sum ofSquaresSSA=SSW = 176SST=MeanSquare (Variance)MSA=33MSW =MSA=33MSW = ?FFSTAT=FFSTAT = ?

The experiment is consisting of 4 groups with five values in each group.

Answered: Consider an experiment with four…

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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A veterinarian wanted to know if there is any difference in the average lifespan of four different breeds of dogs. He took a random sample of five dogs from four different breeds. Here are the results when he ran a one way ANOVA test: Options Analysis of Variance results: Data stored in separate columns. Column statistics Columnn Mean Std. Dev. Std. Error + Terrier Retriever 5 Hound Bulldog 5 13 1.5811388 0.70710678 12.6 2.0736441 0.92736185 5 13.8 2.1679483 0.96953597 5 12 1.8708287 0.83666003 ANOVA table Source DF SS MS F-Stat P-value Columns 3 8.55 2.85 0.76 0.5328 Error 16 60 3.75 Total 19 68.55 What can we conclude from the one way ANOVA test?
The second slide is the first part of the question and the first slide is the second part of the question
A local bank claims that the waiting time for its customers to be served is the lowest in the area. A competitor bank checks the waiting times at both banks. The sample statistics are listed below. Test the local bank's claim. Use the information given below. Use a significance level of .05 and assume the variances are equal. Sample statistics for a local bank and a competitor's bank Local Bank Competitor Bank Sample size n1 = 46 n2 = 50 Average waiting time in minutes for each sample X, = 2.3 mins. X2 = 2.6 Sample Standard Deviation of each Sample = 1.1 mins 1.0 mins. S1 S2 1. Are the samples dependent or independent? 2. State your Null/Alternative hypotheses 3. What is the test-statistic? 4. What is the p-value? 5. What are the critical values? 6. Does the test-statistic lie in the rejection region? 7. Interpret the Result? Does the result change for a different value of alpha? Explain?
You work for a soft-drink company in the quality control division. You are interested in the variance of one of your production lines as a measure of consistency. The product is intended to have a mean of 12 ounces, and your team would like the variance to be as low as possible. You gather a random sample of 16 containers. Estimate the population variance at a 80% level of confidence. 11.82 11.83 11.85 11.89 11.9 11.97 12 12 12 12.01 12.02 12.04 12.05 12.11 12.16 12.18 Variance of Data: 0.012 Note: Round all values to 3 decimals and use those rounded values in subsequent calculations. a) Find the lower and upper x critical values at 80% confidence: Lower: Upper: b) Report your confidence interval for o?: Lower Bound: Upper Bound:
What are the values for SS and variance for the following sample of n = 3 scores? Sample: 8, 5, 2
Degrees of Sum of Source Freedom Squares Square (Variance) Among c-1=? SSA=? MSA = 69 Consider an experiment with three groups, with nine values in each. For the ANOVA summary table shown to the right, fill in all Within the missing results. groups groups Total n-c=? SSW = 552 n-1=? SST = ? Complete the ANOVA summary table below. Degrees of Sum of Source Freedom Squares Among groups c-1= SSA= Within groups n-ca Total n-1= (Simplify your answers.) SSW = 552 SST Mean Square (Variance) MSA = 69 MSW= Mean MSW = ? F FSTAT F FSTAT = ? ***
Choose the appropriate statistical test. When computing, be sure to round each answer as indicated. A dentist wonders if depression affects ratings of tooth pain. In the general population, using a scale of 1-10 with higher values indicating more pain, the average pain rating for patients with toothaches is 6.8. A sample of 30 patients that show high levels of depression have an average pain rating of 7.1 (variance 0.8). What should the dentist determine? 1. Calculate the estimated standard error. (round to 3 decimals). [st.error] 2. What is thet-obtained? (round to 3 decimals). 3. What is the t-cv? (exact value) 4. What is your conclusion? Only type "Reject" or Retain"
The accompanying table lists pulse rates. Use a 0.05 significance level and apply the methods of two-way analysis of variance. What is the conclusion? Click on the icon to view the data table. C State the null and alternative hypotheses in the test for the effect of an interaction between row and column factors. Ho: There is no interaction between gender and age. H₁: There is an interaction between gender and age. What is the value of the test statistic for this test? F = 3.32 (Round to two decimal places as needed.) What is the corresponding P-value of the test statistic, F, for this P-value= (Round to three decimal places as needed.) Pulse Rates for Gender and Age Over 30 Years of Age Under 30 Years of Age Female 78 103 78 63 61 98 81 98 91 95 77 75 73 65 71 78 61 71 74 55 Female Male 60 81 56 69 68 74 75 68 63 56 46 70 61 65 91 80 59 58 64 59 Male D X
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