The grams of carbohydrates for cereals made by three popular cereal manufacturers(Kellogg, General Mills, and Post) were collected and a one-way ANOVA wasperformed, as displayed in the table below.Analysis of Variance results:Where: mfr="General Mills" or mfr="Kellogg" or mfr="Post"Responses: carboFactors: mirmfr="General Mills" or mfr="Kellogg" or mfr="PCarbohydrates20Response statistics by factorn. Mean Std. Dev. Std. ErrorGeneral Mills 22 14.7272733.3478041 0.7137542315KelloggPost23 15.130435 4.4650598 0.931029339 13.222222 1.9220938 0.64069792ANOVA tableSource DFmfrErrorSSMSF-Stat P-value2:23.786927 11.893464 0.86217854 0.428351 703.52789 13.79466410Total53 727.31481General Mills KelloggManufacturerPostWhich manufacturer has the least variance in the grams of carbohydrates?KelloggO General MillsPostCannot be determined.

The objective of the question is to identify the cereal manufacturer with the least variance in the…

Answered: The grams of carbohydrates for cereals…

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 standardized math test was administered to two groups of 5th graders, one group sampled from classes whose teachers had followed the existing curriculum and one group sampled from classes whose teachers had followed a new curriculum, and the scores were compared using a t-test with the following results: t-test: Two-Sample Assuming Equal Variances Old Curriculum New Curriculum Mean 75.31914894 65.65957447 Variance 118.613321 801.1424607 Obervations 47 47 Hypothesized Mean Difference 0 df 92 t Stat 2.183587807 P(T<=t) one-tail 0.015768226 t Critical one-tail 1.661585397 P(T<=t) two-tail 0.031536452 t Critical two-tail…
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A standardized math test was administered to two groups of 5th graders, one group sampled from classes whose teachers had followed the existing curriculum and one group sampled from classes whose teachers had followed a new curriculum, and the scores were compared using a t-test with the following results: Old Curriculum New Curriculum Mean 75.31914894 65.65957447 Variance 118.613321 801.1424607 Observations 47 47 Pooled Variance 459.8778908 Hypothesized Mean Difference 0 df 92 t Stat 2.1835887807 P(T<=)one tail 0.015768226 t Critical one-tail 1.661585397 P(T<=t) two-tail 0.031536452 t Critical two-tail 1.986086317 You decide to use the conventional p=.05 as your cutoff for statistical significance. What do you conclude from this analysis? a.…
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A sample of 15 maple trees in Vermont were treated with one of three amounts of fertilizer, Low (group 1), Medium (group 2) and High (group 3). The volume in sap (measured in mL) produced by each tree was recorded, and a Single-Factor ANOVA test was performed, which ended up rejecting . The Summary table and the ANOVA table produced by Excel are given below: SUMMARY Groups Count Sum Average Variance Low 5 398.1 79.62 27.572 Medium 5 477.2 95.44 3.703 High 5 445.1 89.02 11.357 ANOVA Source of Variation SS df MS F Between Groups 633.0813333 2 316.5406667 22.27486395 Within Groups 170.528 12 14.21066667 Total 803.6093333 14 If you follow up the ANOVA test with a FORMAL Fisher's LSD Pairwise Comparison (PWC) test on , then use the information provided in the Excel-generated output to calculate the value of the Test Statistic (TS) that you would use to perform this PWC test. Round off your final answer to the…
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