9.20The Agricultural Experiment Station of a university tested two different herbicides and their effects on crop yield. From 90 acres set aside for the experiment, the station used herbicide 1 on a random sample of 30 acres and herbicide 2 on a second random sample of 30 acres; they used the remaining 30 acres as a control. At the end of the growing season, the yields (in bushels per acre) were as follows:Herbicide 181.281.179.984.680.474.481.790.1102.489.292.091.775.995.176.183.088.080.573.680.4103.285.973.680.082.479.599.896.681.394.7Herbicide 294.890.985.283.395.585.487.189.683.788.791.485.489.092.485.091.089.2100.988.590.387.680.790.0101.092.197.992.588.889.4100.1Control94.779.591.482.696.985.480.890.688.680.878.182.593.583.190.589.282.084.190.184.581.292.490.582.0106.696.976.1101.877.588.8a. Compare the mean yields of herbicide 1 and herbicide 2 to the control treatment. Use a = .05.b. Should the procedure you used in part (a) be a one-sided or a two-sided procecedures?c. Interpret your findings in part (a).

Part (a):In order to compare the mean yields of Herbicides 1 and 2 to the Control, first perform…

Answered: 9.20 The Agricultural Experiment…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Concept explainers

Question

100%

9.20

The Agricultural Experiment Station of a university tested two different herbicides and their effects on crop yield. From 90 acres set aside for the experiment, the station used herbicide 1 on a random sample of 30 acres and herbicide 2 on a second random sample of 30 acres; they used the remaining 30 acres as a control. At the end of the growing season, the yields (in bushels per acre) were as follows:

Herbicide 1

81.2	81.1	79.9	84.6	80.4	74.4	81.7	90.1	102.4	89.2
92.0	91.7	75.9	95.1	76.1	83.0	88.0	80.5	73.6	80.4
103.2	85.9	73.6	80.0	82.4	79.5	99.8	96.6	81.3	94.7

Herbicide 2

94.8	90.9	85.2	83.3	95.5	85.4	87.1	89.6	83.7	88.7
91.4	85.4	89.0	92.4	85.0	91.0	89.2	100.9	88.5	90.3
87.6	80.7	90.0	101.0	92.1	97.9	92.5	88.8	89.4	100.1

Control

94.7	79.5	91.4	82.6	96.9	85.4	80.8	90.6	88.6	80.8
78.1	82.5	93.5	83.1	90.5	89.2	82.0	84.1	90.1	84.5
81.2	92.4	90.5	82.0	106.6	96.9	76.1	101.8	77.5	88.8

a. Compare the mean yields of herbicide 1 and herbicide 2 to the control treatment. Use a = .05.

b. Should the procedure you used in part (a) be a one-sided or a two-sided procecedures?

c. Interpret your findings in part (a).

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 + ...

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 6 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions