Brewery Effluent and Crops. Because many industrial wastes contain nutrients that enhance crop growth, efforts are being made for environmental purposes to use such wastes on agricultural soils. Researchers studied the physico-chemical properties of effluent from Mohan Meakin Breweries Ltd. (MMBL), Ghazibad, UP, India, and “... its effects on the physico-chemical characteristics of agricultural soil, seed germination pattern and the growth of two common crop plants.” They assessed the impact of using different concentrations of the effluent: 25%, 50%, 75% and 100%. The following data, based on the results of the study, provide the percentages of limestone in the soil obtained by using 100% effluent: 2.41 2.31 2.54 2.28 2.72 2.60 2.51 2.51 2.42 2.70Do the data provide sufficient evidence to conclude, at the 15% level of significance, that the mean available limestone in soil treated with 100% MMBL effluent exceeds 2.3%? That is, use "=0.15. Answer the question by writing the null and alternative hypothesis, test statistics value, critical value, draw acceptance and rejection regions, make a decision and write a conclusion. Also, calculate the exact p-value associated with the test. You need to use excel to get the critical value as well as the exact p-value (values not in t-table).

sample size (n) = 10 sample mean (x̄) = Σx/n = 25/10 = 2.5 sample standard deviation (s) = √Σ…

Answered: ts are being made for environmental…

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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Brewery Effluent and Crops. Because many industrial wastes contain nutrients that enhance crop growth, efforts are being made for environmental purposes to use such wastes on agricultural soils. Researchers studied the physico-chemical properties of effluent from Mohan Meakin Breweries Ltd. (MMBL), Ghazibad, UP, India, and “... its effects on the physico-chemical characteristics of agricultural soil, seed germination pattern and the growth of two common crop plants.” They assessed the impact of using different concentrations of the effluent: 25%, 50%, 75% and 100%. The following data, based on the results of the study, provide the percentages of limestone in the soil obtained by using 100% effluent:

2.41 2.31 2.54 2.28 2.72 2.60 2.51 2.51 2.42 2.70

Do the data provide sufficient evidence to conclude, at the 15% level of significance, that the mean available limestone in soil treated with 100% MMBL effluent exceeds 2.3%? That is, use "=0.15. Answer the question by writing the null and alternative hypothesis, test statistics value, critical value, draw acceptance and rejection regions, make a decision and write a conclusion. Also, calculate the exact p-value associated with the test. You need to use excel to get the critical value as well as the exact p-value (values not in t-table).

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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