The times required by three workers to perform an assembly-line task were recorded on five randomlyselected occasions for each worker, and an ANOVA test performed.1. The correct alternative hypothesis to test if there is a difference in performance, on average,between the workers is:a. μ1- μ2 Ξ μ3b. µ1 µ2 # p3c. μ1 > μ2> μ3d. None of the above2. In testing the appropriate hypothesis at the 10% level of significance, determine the critical value,to 2 decimal places.3. The correct decision is:a. Reject Hob. Fail to reject Hoс. Ассept Ноd. Fail to accept H1

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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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For a given disease gene, specified mode of inheritance, and observed data set, if the p-value for a chi-square goodness of fit analysis is 0.001, and the significance level is 0.10, then we: a) make no decision. b) reject the null hypothesis that the disease follows the specified mode of inheritance at the given gene. c) reject the null hypothesis at the 0.0001 level. d) reject the null hypothesis that the disease does not follow the specified mode of inheritance at the given gene. e) accept the null hypothesis that the disease almost certainly follows the specified mode of inheritance at the given gene.
Sleep apnea is a disorder in which there are pauses in breathing during sleep. People with this condition must wake up frequently to breathe. The article “Postoperative Complications in Patients With Obstructive Sleep Apnea Syndrome Undergoing Hip or Knee Replacement: A Case-Control Study” (R. Gupta, J. Parvizi, et al., Mayo Clinic Proceedings, 2001:897–905) reported that in a sample of 427 people 65 and over, 104 of them had sleep apnea. a) Find a 95% confidence interval for the proportion of those 65 and over who have sleep apnea. b) Find a 99% confidence interval for the proportion of those 65 and over who have sleep apnea. c) Find the sample size needed for a 95% confidence interval to specify the proportion to within ±0.03. d) Find the sample size needed for a 99% confidence interval to specify the proportion to within ±0.03.
Given two independent random samples with the following results: n₁ = 651 x₁ = 307 n2 = 569 x2 = 234 Can it be concluded that there is a difference between the two population proportions? Use a significance level of a = 0.02 for the test. Copy Data Step 5 of 6: Determine the decision rule for rejecting the null hypothesis Ho. Round the numerical portion of your answer to two decimal places.
Three treatments are compared for the treatment of in a between-subjects study. The following table of results were created to compare the three different treatment options. Treatment 1 Treatment 2 Treatment 3 n = 5 n = 5 n = 5 M = 2 M = 5 M = 8 N = 15 T = 10 T = 25 T = 40 G = 75 SS = 64 SS = 80 SS = 96 ΣX2 = 705 Use an ANOVA with α = .05 to determine whether there are any significant differences among the three treatment means. Calculate η2 as a measure of effect size. State the results as they would appear in a research report.
In a construction site wheelbarrow is loaded by a worker. The total weight after loading of barrowand the loading time is recorded for ten of the cycles in a day randomly.a) Find the correlation coefficient between the time and weight of wheelbarrow.Sample variance of loading time is 303.29Sample variance of the weight is 272.78b) Assume that the loading time is normally distributed. Please find the mean of loading time with99% confidence interval using t distribution. Time to Load(s) Weight of Wheelbarrow(kg)172 76173 83179 95171 84193 94193 106156 60158 70188 90139 53
a. Find the t values that form the boundaries of the critical region for a two-tailed test with ? = .05 for a sample size of n = 12. b. Repeat the above for a one-tailed test, with ? = .05.
Which of the following is a Null hypothesis for a paired-samples t-test? μd = 0 μd = X μ1 ≠ μ2 μ1 = μ2
The U.S. Postal Service (USPS) is faced with the issue of a large portion of mail (letters and packages) that cannot be delivered because of an illegible or non-existent address. USPS would like to find out if there is any evidence that the proportion of undeliverable mail has significantly decreased since last year when it was 6%. Which of the following are the correct null and alternative hypotheses for this test? Select one: a. Ho: p = 0.06 versus Ha:p> 0.06 b. Ho: p 0.06 ge Next page Moodle Accessibility Specification Coastal Carolina University (CCU) does not discriminate on the basis of race, color, religion, sex, sexual orientation, genc national origin, age, genetic information, mental or physical disability, or status as a disabled or Vietnam-era veteran in it programs, activities or employment practices. For more information related to discrimination, please contact Title IX, Titl office phone 843-349-2382: FEN email eenarnastal adur or thel Dent of Education office for…
In a one-way ANOVA, assume you have three treatments with n1 = 5, n2 = = 6, and n3 = 5. If you use a 5% significance level, what would the rejection region for this test be? a. F > 3.81 Ob. F> 3.68 O C. F> 3.63 Od. F> 4.08 O HH ho
What is the answer of the 7.15 question?
Below are the results for the three periods between the USA Stock and the USA Treasuary Bills. The complete sample, January 1950 to December 2017. Correlation = -0.159596558 The subsample, January 1950 to December 1969. Correlation = -0.262086255 The subsample, January 1970 to December 2017. Correlation = -0.142338644 required, interprete the meaning of the results and if the null hypothesis was that the colerration is 0 would that be true?
In a chi-square goodness-of- fit test with 5 degrees of freedom and a significance level of 0.05, the chi-square value from the table is 11.0705. Which of the following computed values of the chi-square test statistic will lead to rejection of the null hypothesis? Select one: a. 17.61 b. 10.78 c. 8.952 d. 7.814 e. 0.25

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