An article in Journal of Food Science (2001, Vol.66, No. 3, pp. 472-477) studied potato spoilage based on different conditions of acidifiedoxine (AO). which is a mixture of chlorite and chlorine diaxide. The data are shown below:AO Solution (ppm) % Spoilage100 50 60501006030 302006050 294002530 15(a) Do the AO solutions differ in the spoilage percentage? Use a = 0.05.There isfor significant differences in the spoilage percentage when using different AO solutions.(b) Find the P-value of the test. Estimate the variability due to random error.P-value =- (Round your answer to three decimal places.)MSE =1- (Round your answer to the nearest integer.)(c) Plot average spoilage against AO solution and interpret the results. Which AO solution would you recommend for use in practice?v AO solution will be used.(d) Analyze the residual plots to determine model adequacy.Does the assumption of normality seem reasonable?Does the assumption of constant variance seem reasonable?

Given data: AO solution % spoilage % spoilage % spoilage 50 100 50 60 100 60 30 30 200 60…

Answered: An article in Journal of Food Science…

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter12: Probability

Section12.3: Conditional Probability; Independent Events; Bayes' Theorem

Problem 82E

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Empty Stomachs. In the publication “How Often Do Fishes ‘Run on Empty’?” (Ecology, Vol. 83, No 8, pp. 2145–2151), D. Arrington et al. examined almost 37,000 fish of 254 species from the waters of Africa, South and Central America, and North America to determine the percentage of fish with empty stomachs. The fish were classified as piscivores (fish-eating), invertivores (invertibrateeating), omnivores (anything-eating) and algivores/detritivores (eating algae and other organic matter). For those fish in African waters, the data on theWeissStats site give the proportions of each species of fish with empty stomachs. At the 1% significance level, do the data provide sufficient evidence to conclude that a difference exists in the mean percentages of fish with empty stomachs among the four different types of feeders? a. conduct a one-way ANOVA test on the data. b. interpret your results from part (a). c. decide whether presuming that the assumptions of normal populations and equal…
An article in the Journal of Environmental Engineering (1989, Vol. 115(3), pp. 608–619) reported the results of a study on the occurrence of sodium and chloride in surface streams in central Rhode Island. The following data are chloride concentration y (in milligrams per liter) and roadway area in the watershed x (in percentage).
Two different analytical methods were used to determine residual chlorine in sewage effluents. Both methods were used on the same samples, but each sample came from various locations with differing amounts of contact time with the effluent. Two methods were used to determine the concentration of Cl in mg/L, and the results are shown in the following table: Sample Method A Method B 1 0.39 0.36 2 0.84 1.35 3 1.76 2.56 4 3.35 3.92 5 4.69 5.35 6 7.70 8.33 7 10.52 10.70 8 10.92 10.91 a) What type of t-test should be used to compare the two methods and why? b) Do the two methods give different results? State and test the appropriate hypotheses. c) Does the conclusion depend on whether the 90%, 95%, or 99% confidence levels are used?
An article in Journal of Food Science (2001, Vol. 66, No. 3, pp. 472-477) studied potato spoilage based on different conditions of acidified oxine (AO), which is a mixture of chlorite and chlorine dioxide. The data are shown below: AO Solution (ppm) % Spoilage 50 100 50 60 100 60 30 30 200 60 50 29 400 25 30 15 (a) Do the AO solutions differ in the spoilage percentage? Use a = 0.05. There is for significant differences in the spoilage percentage when using different AO solutions. (b) Find the P-value of the test. Estimate the variability due to random error. P-value -i (Round your answer to three decimal places.) MSE - i (Round your answer to the nearest integer.) (c) Plot average spoilage against AO solution and interpret the results. Which AO solution would you recommend for use in practice? AO solution will be used. residual plots to determine model adequacy. 400 ppm 50 ppm 200 ppm 100 ppm mption of normality seem reasonable? Does the assumption of constant variance seem reasonable?
An article in Journal of Food Science (2001, Vol. 66, No. 3, pp. 472-477) studied potato spoilage based on different conditions of acidified oxine (AO), which is a mixture of chlorite and chlorine dioxide. The data are shown below: AO Solution (ppm) % Spoilage 50 100 50 60 100 60 30 30 200 60 50 29 400 25 30 15 (a) Do the AO solutions differ in the spoilage percentage? Use a = 0.05. There is for significant differences in the spoilage percentage when using different AO solutions. evidence (b) Find the P-value of the test. Estimate the variability due to random error. P-value - i 0.073 (Round your answer to three decimal places.) MS - i 327 (Round your answer to the nearest integer.) (c) Plot average spoilage against AO solution and interpret the results. Which AO solution would you recommend for use in practice? 400 ppm v AO solution will be used. (d) Analyze the residual plots to determine model adequacy. Does the assumption of normality seem reasonable? Does the assumption of…

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