If the standard deviation of a nut's hole diameter exceeds 0.01 millimeters, there is an unacceptably highprobability that the screw will not fit. Suppose that n = 20 and s = 0.008 millimeter.a. Reject Ho. There is evidence to conclude that the true variance exceeds 0.0001 at a= 0.05v Indicate the parameter of interestIs there strong evidence to indicate that the standard deviation of hole diameter exceeds 0.01 millimeter? b Variance of the hole diameterUse a = 0.05. Perform a hypothesis test. Ho: o = 0.0001 vs. H1 : o > 0.0001c. Bz0.18Suppose that the actual standard deviation of hole diameter exceeds the hypothesized value by 50%. Whatis the probability that this difference will be detected by the test described in part (a)?d. Fail to reject Ho. There is insufficient evidence to conclude that the true varianceexceeds 0.0001 at a = 0.05Use the OCve below in determining Bе. В3D 0.301.00f. The power of the test would decrease if the sample size is increased0.80Thepower of the test would increase if the sample size is increasedg.0.60n = 20.4040.202.03.04.01.0How would increasing the sample size affect the power of the test of detecting the variance of holediameter really exceed 0.0001?Probability of accepting Ho

Given Information: Sample size n=20 Sample standard deviation s=0.008 (a) The parameter of Interest…

Answered: nation ol a nut s nole plably…

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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earhorcout Coubionud ecoLea 21. Use the Empirical rule to solve the problem. (5pt The amount of Jen's monthly phone bill is normally distributed with a meån of $70 and a standard deviation of $9. a) Draw a normal curve with the mean in the center. Label the x axis with the values one, two and three standard deviations away from the mean. 12
Spray drift is a constant concern for pesticide applicators and agricultural producers. The inverse relationship between droplet size and drift potential is well known. The paper "Effects of 2,4-D Formulation and Quinclorac on Spray Droplet Size and Deposition"+ investigated the effects of herbicide formulation on spray atomization. A figure in a paper suggested the normal distribution with mean 1050 µm and standard deviation 150 µm was a reasonable model for droplet size for water (the "control treatment") sprayed through a 760 ml/min nozzle. USE SALT (a) What is the probability that the size of a single droplet is less than 1380 µm? At least 950 µm? (Round your answers to four decimal places.) less than 1380 μm at least 950 μm (b) What is the probability that the size of a single droplet is between 950 and 1380 µm? (Round your answer to four decimal places.) (c) How would you characterize the smallest 2% of all droplets? (Round your answer to two decimal places.) The smallest 2% of…
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The dependent is variance inflation factor, make a decision whether it need to drop any variables.
Researchers compared two groups of competitive rowers: a group of skilled rowers and a group of novices. The researchers measured the angular velocity of each subject’s right knee, which describes the rate at which the knee joint opens as the legs push the body back on the sliding seat. The sample size ?, the sample mean, and the sample standard deviation for the two groups are given below. Group N x̄ s Skilled 16 4.2 0.6 Novice 16 3.2 0.8 Construct the 99% confidence interval for the difference between the groups. How does this confidence interval relate to the conclusion of your test?
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Researchers compared two groups of competitive rowers: a group of skilled rowers and a group of novices. The researchers measured the angular velocity of each subject’s right knee, which describes the rate at which the knee joint opens as the legs push the body back on the sliding seat. The sample size ?, the sample mean, and the sample standard deviation for the two groups are given below. Group N x̄ s Skilled 16 4.2 0.6 Novice 16 3.2 0.8 Conduct the test. Provide your significance test formula, test statistic, p-value, and degrees of freedom if applicable. What do you conclude at σ = 0.01?
I have attached the density measurements in the pictures. Please find the standard deviation of the measurements
Fresh Mart QQ's profit on each delivery is estimated by RM P, where the random variable P has mean u and variance 1.92. According to previous record, the value of u used to be 0.85. Manager suspects that this value has increased. In order to test at the 5% significance level whether the value of u has increased, a random sample of 50 delivery transaction is chosen. Assume the variance of P is unchanged. Given that Ep 59. Find the unbiased estimates of the population mean. Stating the null and alternative hypotheses, test at 5% significance level on whether the manager's suspicion is true. The alternative hypothesis for a test is stated as below: H:µ # 30 State the null hypothesis and determine whether this test is one-tail test or two- tail test hypothesis.
Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 4.6 parts/million (ppm). A researcher believes that the current ozone level is at an excess level. The mean of 14 samples is 4.9 ppm with a variance of 1.2 Does the data support the claim at the 0.01 level? Assume the population distribution is approximately normal. Step 2 of 5 : Find the value of the test statistic. Round your answer to three decimal places.
please include all steps. thank yoou.

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