Four analysts perform replicate sets of Hg determinations on the same analytical sample. Theresults in ppb Hg are shown in the following table.Determination Analyst 1Analyst 2 Analyst 3Analyst 410.2410.1410.1910.19210.2610.1210.1110.1510.0410.163410.2910.1510.2310.0710.1210.10Is there a significant difference between the measurements of the analysts?а.b. What is the calculated value of F?c. What is the sum of squares of factor?d. What is the total sum of square?e. What is the grand mean?f. What is the sum of squares of error?g. What is the mean of squares of factor?h. What is the mean of squares of error?

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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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The Ministry of Education has commissioned a study to determine students’ reading ability based on the level of illumination they were given for the type of reading material. The results of the trial are given below: 1. Conduct the appropriate statistical analyses to compare the reading ability for the two types of reading material while controlling for level of illumination. Clearly outline all your tests.2. What is your conclusion? 3. Has the assumptions of normality and homogeneity of variance been met? (Quote relevant statistics in your response and provide the necessary hypotheses)4. The JASP output and input of all the statistical analyses performed PLEASE INSERT ALL CALCULATIONS USING JASP SOFTWARE
A bond analyst is analyzing the interest rates for equivalent municipal bonds issued by two different states. At a = 0.05, is there enough evidence to conclude that there is a difference in the interest rates paid by the two states? State A State B Sample size Mean interest rate (%) 40 40 3.5 3.9 Population variance 0.02 0.03
Given the data below, what is the calculated test statistic? Placebo Medication 1 Medication 2 3 4 9 1 3 7 3 5 8 2 5 11 4 4 9 3 SS1 = 5.33 SS2 = 2.8 SS3 = 8.8 T1 = 16 T2 = 21 T3 = 44 n1 = 6 n2 = 5 n3 = 5 ∑X2 = 53 Do you reject the null? Yes No Was there a treatment effect for type of medication on number of anti-anxiety symptoms? Yes No
Which statistical method can be considered as an extension of One-Way ANOVA to incorporate a "covariate"? a. two way ANOVA b. ANCOVA c. Normality Testing d. Covariance
1. Interpret the data which has been presented in thr below Table 1 and Table 2.
Given below are the analysis of variance results from a stat software display comparing sample data for the meanmileage for 4 different types of cars. Assume that you want to use a 0.05 significance level in testing the null hypothesisthat the different samples come from cars with the same mileage. What can you conclude about the equality of the population means?Source DF SS MS F pFactor 3 13.500 4.500 5.17 0.011Error 16 13.925 0.870Total 19 27.425 12)What is the null and alternative hypothesis for this scenari?Based on this One Way Anova software analysis, would you reject of fail to reject the nul hypothesis?What does this result mean in context?
Speed Dating Listed below are attribute ratings of males by females who participated in speed dating events (from Data Set 18 “Speed Dating” in Appendix B). Use a 0.05 significance level to apply the methods of two-way analysis of variance. What do you conclude?
ARE THE FOLLOWING DATA EQUALLY DISTRIBUTED ACROSS CATEGORIES? TEST AT.05 SIGNIFICANCE LEVEL. ABICID 35 15 10 45 WHAT STATISTICAL TEST WAS USED? OBSERVED VALUE ? CRITICAL VALUE? ACCEPT OR REJECT NULL? DO THE GROUPS DIFFER SIGNIFICANTLY?
The number of traffic accidents in a city was recorded for a year is as reported below. What is the sample variance? Jan Feb Mar Apr May Jun | Jul Oct Aug Sep Nov 18 18 20 19 37 28 48 36 38 41 35 O 131.61 ○ 117.00 ○ 116.00 O 120.63

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