Perform ANOVA to determine if the means are significantly different using α = 0.05FIND: SSA, degrees of freedom of error, computed f- value, and conclusion CatalystABC77.581.578.182.082.380.280.681.481.584.979.583.081.083.082.1Σ406.0407.7404.9Σε32803.3132995.6233250.75

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Answered: Perform ANOVA to determine if the means…

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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A recent newspaper article claims that 62% of car accidents involve some evidence of distracted driving. A police officer questions this claim, and pulls a random sample of 61 accident reports. If 43 of them involve distracted driving, is this enough evidence to show that the proportion of car accidents involve some evidence of distracted driving is significantly greater than than reported by the newspaper? (Use α=0.025) The test statistic = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)
The net weight in pounds of a packaged chemical herbicide is uniform for 49.75
How is a t-test related to the t-statistic of a parameter?
The sodium content of 30 packages of 300 grams of corn flakes of a certain brand was examined. The data in milligrams: the mean is 129.753 and s = 0.929: (a) Can the assertion that the sodium content of this brand of cereal is different from 130 mg be supported? Use = 0.5, find the p-value. b) Calculate the power of the test if the true average sodium is 130.5 mg. c) What sample size would be required to detect a true average sodium content of 130.1 if we want the power to be at least 0.75? Note:The exercise in the image is in Spanish, which is the original, to make it easier to understand.
The mean for the number of sex partners of respondents in the past 12 months is 2.371429. The sd for the number of sex partners of respondents in the past 12 months is 3.003242 The mean for the number of persons that respondents used condoms within the past 12 months is 1.214286. The sd number of persons that respondents used condoms with in the past 12 months is 1.473366 (A)Were respondents more variable in the number of sex partners in the past 12 months or the number of persons that respondents used condom with? Provide an explanation for your findings using appropriate statistics.
Does the data need to be normally distributed for a t-test to work?
For a hypothesis test of the claim that the mean amount of sleep for adults is less than 6 hours, technology output shows that the hypothesis test has power of 0.4733 of supporting the claim that μ<6 hours of sleep when the actual population mean is 4.0 hours of sleep. Interpret this value of the power, then identify the value of β and interpret that value.
SOLVE FOR CRITICAL VALUE Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these gears measures in foot-pounds is an important characteristic. A random sample of 10 gears from supplier 1 results in x1 = 290 and s1 = 12 while another random sample of 16 gears from the second supplier results in x2 = 321 and s2 = 22. Is there evidence to support the claim that supplier 2 provides gears with higher mean impact strength. Use a =0.04, and assume that both populations are normally distributed with equal variances.Level of significance = 0.04
An analyst for a transportation metro is asked to examine the time required (x) in minutes for a specific commute route. She records 200 randomly sampled times and finds: Σx = 11,000 and Sxx =1791. Find the average commute time, as well as standard deviation and coefficient of variation.
During the busy season, it is important for the shipping manager at ShipMundo to be able to estimate the time it takes the loading crew to load a truck. The shipping manager has found that she can model the load times using a normal distribution with a mean of 152 minutes and a standard deviation of 15 minutes. Use this table or the ALEKS calculator to find the percentage of load times between 116 minutes and 149 minutes according to the model. For your intermediate computations, use four or more decimal places. Give your final answer to two decimal places (for example 98.23%).
Q1: Suppose data on root length (in mm) were obtained from roots from the three set-ups: (1) negative control; (2) positive control; (3) water sample of interest. Propose the inferential statistics used to analyze the data. Inferential Statistics

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Perform ANOVA to determine if the means are significantly different using α = 0.05 FIND: SSA, degrees of freedom of error, computed f- value, and conclusion