iRequired informationThe article "The Lubrication of Metal-on-Metal Total Hip Joints: A Slide Down the Stribeck Curve" (S. Smith, D. Dowsonand A. Goldsmith, Proceedings of the Institution of Mechanical Engineers, 2001:483-493) presents results from weartests done on metal artificial hip joints. Joints with several different diameters were tested. The data presented in thefollowing table on head roughness are consistent with the means and standard deviations reported in the article.DiameterHead Roughness(mm)160.832.25(mm)0.202.783.93282.722.483.80365.995.324.59Use the Fisher LSD method to find a 95% confidence interval for the difference between the means for a diameter of 16 anddiameter of 36. (Round the final answer to three decimal places.)The 95% confidence interval is (0Search<. Prev 2 of 20Next >

Step 1: Calculate Means and Standard DeviationsFor each group of diameters, we start by calculating…

Answered: i Required information The article "The…

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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The decline of salmon fisheries along the Columbia River in Oregon has caused great concern among commercial and recreational fishermen. The paper 'Feeding of Predaceous Fishes on Out-Migrating Juvenile Salmonids in John Day Reservoir, Columbia River' (Trans. Amer. Fisheries Soc. (1991: 405-420) gave the accompanying data on 10 values for the data sets where y = maximum size of salmonids consumed by a northern squaw fish (the most abundant salmonid predator) and x = squawfish length, both in mm. Here is the computer software printout of the summary: Coefficients: Estimate Std. Error t value Pr(> |t|) (Intercept) −90.020 16.702 −5.390 0.000 Length 0.705 0.049 14.358 0.000 Using this information, compute a 95% confidence interval for the slope.
Quality Style manufactures self-assembling furniture. Toreduce the cost of returned orders, the manager of its quality controldepartment inspects the fi nal packages each day using randomlyselected samples. Th e defects include wrong parts, missingconnection parts, parts with apparent painting problems, and partswith rough surfaces. Th e average defect rate is three per day.(a) Which type of control chart should be used? Construct acontrol chart with 3-sigma control limits.(b) Today the manager discovered nine defects. What doesthis mean?
Please help me in solving point d and c.
widely used as dielectrics and coolants in electrical systems in the past. They were found to be a major environmental contaminant in the 1960s. In a study, the mean PCB content at each of thirteen sites was reported for the years 1982 and 1996 (from “The ratio of DDE to PCB concentrations in Great Lakes herring gull eggs and its use in interpreting contaminants data”, Journal of Great Lakes Research 24 (1): 12-31, 1998). The data are below.Site:12345678910111213198261.4864.4745.5059.7058.8175.9671.5738.0630.5139.7029.7866.8963.93199613.9918.2611.2810.0221.0017.3628.207.3012.809.4112.6316.8322.74(a) Which test would be more appropriate in this case: a t-test for the difference between two population means, or a paired t-test? Why?(b) Do the data provide sufficient evidence to support the claim that the mean PCB level has decreased in the region? Be sure to check all assumptions, write the null and alternative hypotheses, calculate the appropriate test statistic, calculate the p-value,…
1 A. Explain when the implementation of measurement uncertainty (error) uses descriptive statistical methods or the Gaussian method B B.Explain the importance or uncertainty of measurement (error)
NW 6.12 CORPORATE SUSTAINABILITY OF CPA FIRMS. Corporate sustainability refers to business practices designed CORSUS around social and environmental considerations. Refer to the Business and Society (March 2011) study on the sustainability behaviors of CPA corporations, Exercise 2.23 (p. 59). Recall that the level of support for corporate sustainability (measured on a quantitative scale ranging from 0 to 160 points) was obtained for each in a sample of 992 senior managers at CPA firms. Higher point values indicate a higher level of support for sustainability. The accompanying StatCrunch printout gives a 99% confidence interval for the mean level of support for all senior managers at CPA firms. One sample T confidence interval: μ: Mean of variable 99% confidence interval results: Variable Sample Mean Std. Err. DF L. Limit U. Limit Support 67.75504 0.85314633 991 65.553241 69.95684 a. Locate the 99% confidence interval on the printout. b. Use the sample mean and standard deviation on the…
Which two fields of the ANOVA summary table help us find the critical value? Select all that apply A.df between B.MS within C.df within D. MS between

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