An experiment was conducted to assess the efficacy of spraying oats with Malathion (at 0.25 Ib/acre) to control the cereal leaf beetle. Two fields were used at each of 10 farms in southwest Manitoba. One field at each farm was assigned at random to either the control group (no spray) or the treatment group (spray), and the second field was assigned to the other treatment. At the conclusion of the experiment, a plot on each farm was selected, the number of beetle larvae per square foot was measured, and a one-tailed test of significance was performed to determine if Malathion reduced the average number of beetles. The results are given below. Assume conditions for the appropriate inference procedure have been met. In Sx 1.30 Control fields Treatment fields Control Field - Treatment Field (Pairs) 6.20 4.76 15 15 15 2.49 1.26 1.44 Which of the following is the appropriate test statistic and interval for the P-value? Ot- 2.556; 0.025

An experiment was conducted to assess the efficacy of spraying oats with Malathion (at 0.25 Ib/acre) to control the cereal leaf beetle. Two fields were used at each of 10 farms in southwest Manitoba. One field at each farm was assigned at random to either the control group (no spray) or the treatment group (spray), and the second field was assigned to the other treatment. At the conclusion of the experiment, a plot on each farm was selected, the number of beetle larvae per square foot was measured, and a one-tailed test of significance was performed to determine if Malathion reduced the average number of beetles. The results are given below. Assume conditions for the appropriate inference procedure have been met. In Sx 1.30 Control fields Treatment fields Control Field - Treatment Field (Pairs) 6.20 4.76 15 15 15 2.49 1.26 1.44 Which of the following is the appropriate test statistic and interval for the P-value? Ot- 2.556; 0.025

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Description: An experiment was conducted to assess the efficacy of spraying oats with Malathion (at 0.25 Ib/acre) to control the cereal leaf beetle. Two fields were used at eachof 10 farms in southwest Manitoba. One field at each farm was assigned at random to e

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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Concept explainers

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

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Question

An experiment was conducted to assess the efficacy of spraying oats with Malathion (at 0.25 Ib/acre) to control the cereal leaf beetle. Two fields were used at each
of 10 farms in southwest Manitoba. One field at each farm was assigned at random to either the control group (no spray) or the treatment group (5pray), and the
second field was assigned to the other treatment. At the conclusion of the experiment, a plot on each farm was selected, the number of beetle larvae per square
foot was measured, and a one-tailed test of significance was performed to determine if Malathion reduced the average number of beetles. The results are given
below. Assurne conditions for the appropriate inference procedure have been met.
In
Control fields
6.20
1.30
Treatment fields
Control Field- Treatment Field (Pairs)
4.76
1.44
2.49
15
1.26
Which of the following is the appropriate test statistic and interval for the P-value?
Ot- 2.556; 0.025 < P - value < 0.05
Ot- 1.44; 0.10 < P - value < 0.20
Oz- 144; 0.10 <P- value < 0.20
Ot- 1.44; P- value < 0.20
Ot- 2.556; P- value > 0.05

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