Yellow Sigatoka fungus has been identified to affect banana crops from a plantationin Kedah. To curb the spread of this fungal infestation, the Kedah agriculturedepartment chose to use mineral oil sprayed on leaf surfaces of the affected bananaplants. The previous average fungal spot observed was 500 spots/m?. Theagriculture department is anticipating the mineral oil treatment will decrease fungalspots found on the banana leaf surface. Conduct all necessary steps starting fromhypothesis statements to the conclusion. Fungalspots351246394524284393235560501440594276136310414309548311303492292494600347362267139389638201551380205356188252237520320157166619379676426547128228112363

Given :The previous fungal spot observed was 500 spots/m2.

Answered: Yellow Sigatoka fungus has been…

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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To compare the dry braking distances from 30 to 0 miles per hour for two makes of automobiles, a safety engineer conducts braking tests for 35 models of Make A and 35 models of Make B. The mean braking distance for Make A is 41 feet. Assume the population standard deviation is 4.6 feet.The mean braking distance for Make B is 42 feet. Assume the population standard deviation is 4.4 feet. At α=0.10, can the engineer support the claim that the mean braking distances are different for the two makes of automobiles? Assume the samples are random and independent, and the populations are normally distributed. Complete parts (a) through (e). (a) Identify the claim and state Ho and Ha. What is the claim? A.The mean braking distance is different for the two makes of automobiles. This is the correct answer. B.The mean braking distance is the same for the two makes of automobiles. C.The mean braking distance is less for Make A automobiles than Make B automobiles. Your answer is…
Please see below. Note that I am only given one attempt at this and I believe that the answer I have may not be correct. In selecting the sample size to estimate the population proportion pp, if we have no knowledge of even the approximate value of the sample proportion p̂ p^, we:A. take two more samples and find the average of their p̂ p^B. let p̂ =0.95p^=0.95C. let p̂ =0.50p^=0.50D. take another sample and estimate p̂ p^ Under which of the following circumstances is it impossible to construct a confidence interval for the population mean?A. A normal population with a large sample and a known population variance.B. A normal population with a small sample and an unknown population variance.C. A non-normal population with a large sample and an unknown population variance.D. A non-normal population with a small sample and an unknown population variance.
The boiling point of 16 samples of a certain brand of hydrogenated vegetable oil used in a fryer was collected, resulting in Xbar=152.1 degrees. Assume that the distribution of melting point is normal with o=3.20. If the boiling point is different than 150 degrees, then either the oil will be too hot and will burn food or it will be too cool and will not properly cook the food. Is the sample mean significantly different from the target of 150 degrees? Use alpha=0.01 Но: H1: Define critical (rejection) region(s): Calculate the appropriate test statistic: What decision do we make? What this decision means in terms of this problem?
26-27. 28-30. 140 y = 4y =
Given the following information: P(A) = 0.4, P(B) = 0.3, P(C)= 0.5, P(AOB)= 0.12, P(BOC)= 0.13, P(AnC) = 0.11, P(A^BoC)=0.05. The value of P((Bn©)|Ā) is 20 13 15 41 49 41 60
10. An engineering study was undertaken to determine the optimum thickness of aluminum to be used to construct cans to be used for cat food. Cans made of aluminum of thickness 2.10 mm and 1.90 mm were tested to determine the maximum load each would sustain before collapsing. The sample data is summarized below. Use a = 0.05 to test the claim that the thicker cans are stronger (will withstand a higher load). 2.10 mm thick 1.90 mm thick sample size 175 170 mean maximum load (kg) 28.18 26.71 standard deviation of maximum load (kg) | 2.78 2.21
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11. You have designed an automatic pitching machine that you plan to market for use by baseball players. You intend that the ball hit the target within one inch, if the machine is operating properly. You also know that the degree of variability cannot exceed .025". After you have designed your first model, you need to examine whether it satisfies the 1" criterion before you pursue further research. You have the machine make 15 tosses. You observe the following distances from the target: se 1.5" .5" 7" 1.0 75" 1.1" 80" 1" 2" 1.0" 1.0 1.2" 9" 5" 6" Do a hypothesis test on these data using the <.01 level of significance. Specify the null and alternative hypotheses, the critical z required to reject or accept the null, your obtained value, and your decision to reject or accept the null. (Show all your work). What do you decide to do? Do you begin the process of marketing the machine or do you need to go back and work on it some more? 12. Run a two sided 95% confidence interval for the…
The researcher would like to determine if these data provide convincing evidence that the true mean amount of time volunteers who were given training held their breath is greater than volunteers without training. Let μ1 = the true mean amount of time that volunteers who were given training held their breath and μ2 = the true mean amount of time that volunteers without training held their breath. What are the appropriate hypotheses?
16) Unfortunately, arsenic occurs naturally in some ground water (Reference: Union Carbide Technical Report K/UR-1). A A mean arsenic level of u = 80 norta 11: safe for agriculturo1
State the null and alternative hypothesis if I claim that the mean lifespan of African elephants is 59 or less.
1) If the sum of the squares of five numbers is 165 and their variance is 8. What is the mean of numbers? 2) A man invested 1000 Pesos per month on a bank that offers 6% interest compounded annually. How much can he get after 5 years? 3) A vessel is in a form of an inverted regular square pyramid of altitude 250 mm and base edge 160 mm. The depth of the water contains is 150mm. How much will the surface area rise when 0.5L of water is added.

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