Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise.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 dioxide. The data are shown below:AO Solution (ppm) % Spoilage50100 50 6010060 30 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 = 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.(d) Analyze the residual plots to determine model adequacy.Does the assumption of normality seem reasonable?Does the assumption of constant variance seem reasonable?

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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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ary > MAT 240: Applied Statistics home > 7.1: Hypothesis test for a population proportion E zyBooks catalog Help/FAQ Feedback? CHALLENGE 7.1.3: Hypothesis test for a population proportion. ACTIVITY 387674.1891676,.qxazay7 Jump to level 1 A software company is interested in improving customer satisfaction rate from the 62% currently claimed. The company sponsored a survey of 238 customers and found that 160 customers were satisfied. What is the test statistic z? Ex: 1.23 Check Next Feedback? CHALLENGE 72°F to search 57) Prisc Inwert DIS F7 6. T U O E D F G K M
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In a study of crop losses due to air pollution, plots of Blue Lake snap beans were grown in open-top field chambers, which were fumigated with various concentrations of sulfur dioxide. After a month of fumigation, the plants were harvested, and the total yield of bean pods were recorded for each chamber. Suppose X = sulfur dioxide concentration (ppm) and Y = yield (kg). Here is the information about the data. n = 17, xbar (sample mean of X) = 0.12, ybar (sample mean of Y) =1.117, sX = 0.11724, sY = 0.31175, r = -0.8506, SS(resid) = 0.2955 residual standard deviation (se) = 0.14 slope of the least-squares regression line: -2.26 Using the given information, what is the standard error of the slope (SEb1)? what’s the value of the test statistic (ts)?
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