The specification for the diameter of a rubber sealing washer is 50 ±0.25 mm. To assess therepeatability and reproducibility of the measuring device, the diameters of 30 washers aremeasured three times by each of four operators. The results of the study are summarisedbelow:Calculate the:TROperator 1 Operator 2 Operator 350.11249.99550.0850.0120.0450.009(i) repeatability.(ii)reproducibility.P/T ratio.Operator 450.2010.168

Solution: From the given information,

Answered: The specification for the diameter of a…

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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Use the following information: n = 145, x = 48, a(alpha)= 0.1.To find how large of a sample is needed in order to have a margin of error of 10%.NOTE: Round your answer to the nearest WHOLE number?
Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. A machine produces metal rods used in an automobile suspension system. Arandom sample of 15 rods is selected and the diameter is measured. The resulting data (in millimeters) are as follows: No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Dia. 8.22 8.25 8.23 8.25 8.26 8.23 8.20 8.26 8.19 8.23 8.20 8.28 8.24 8.25 8.24 Use the data above to calculate a 95% two-sided confidence interval on the mean rod diameter. Assume the data are normally distributed. (a) Calculate the sample mean and standard deviation. Round the sample mean and the sample standard deviation to 2 and 3 decimal places respectively (e.g. 98.76 and 98.765). (b) Calculate the 95% two-sided confidence interval on the true mean rod diameter. Round your answers to 3 decimal places (e.g. 98.765). SHS i
STATE: How heavy a load (in pounds) is needed to pull apart pieces of Douglas fir 44 inches long and 1.51.5 inches square? Given are data from students doing a laboratory exercise. 33,190 31,860 32,590 26,520 33,280 32,320 33,020 32,030 30,460 32,700 23,040 30,930 32,720 33,650 32,340 24,050 30,170 31,300 28,730 31,920 To access the complete data set, click the link for your preferred software format: Excel Minitab JMP SPSS TI R Mac-TXT PC-TXT CSV CrunchIt! We are willing to regard the wood pieces prepared for the lab session as an SRS of all similar pieces of Douglas fir. Engineers also commonly assume that characteristics of materials vary Normally. Suppose that the strength of pieces of wood like these follows a Normal distribution with standard deviation 3000 pounds. PLAN: We will estimate ?μ by giving a 98% confidence interval. SOLVE: Find the sample mean ?¯ . (Enter your answer rounded to the nearest whole number.) ?¯= Give a 98% confidence…
During a prior semester the class went to the Alumni Field House, flew various types of balsa wood airplanes and collected information about the flight distances and flight times of these planes. Identify the units of interest for this study. A. Class Members B. Balsa wood airplanes C. Flight distances and times D. Campus buildings
Write the measurement in terms of all the other units listed in the problem. kilometer (km) hectometer (hm) dekameter (dkm) km hm dkm dm cm mm (mm) meter (m) decimeter (dm) centimeter (cm) millimeter 2•
The toll plaza on Route 1 in Dover has four tollbooths open to all vehicles. Ms. Timlin conducted a chi-square goodness of fit test to see if all of the booths are used in equally. A chi-square value of 23.4 was calculated, resulting in a p-value of 0.006. Which of the following is correct? a. There is sufficient evidence to suggest that the tollbooths are not used in equal proportions. Selected:b. There is sufficient evidence to suggest that the tollbooths are used in equal proportions.This answer is incorrect. c. The tollbooths are used in equal proportions. d. There is insufficient evidence to suggest that the tollbooths are used in equal proportions. e. There is insufficient evidence to suggest that the tollbooths are not used in equal proportions.
A lab technician's volume measurements are consistently 8% too high. What is the correct measurement if this technician records a volume of 172 mL?
Rectangular prism A measures 3 inches by 4 inches by 8 inches. Rectangular prism B measures 5 inches by 5 inches by 6 inches. Before doing any calculations, predict that the prism with the greatest surface area to volume ratio is [ Select] . The actual ratio of surface area to volume for this prism after calculating is [Select] v in?/in³.
Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor cost associated with a particular landscaping proposal is based on the number of plantings of trees, shrubs, and so on to be used for the project. For cost estimating purposes, managers use two hours of labor time for the planting of a medium-sized tree. Actual times from a sample of 10 plantings during the past month follow (times in hours). 2.4 t (to 3 decimals) 2.8 Select your answer - 2.2 Ho : μ Select your answer - 2 Ha - Select your answer - ✪ 2 b. Compute the sample mean. (to 2 decimals) c. Compute the sample standard deviation. (to 4 decimals) d. Find the test statistic and p-value. (Use Table 2 in Appendix B.) ✪ 2.7 1.7 1.5 With a 0.05 level of significance, test to see whether the mean tree-planting time differs from two hours. a. State the null and alternative hypotheses. 1.6 2.4 2.6 3.1 p-value e. What is your conclusion? We - Select your answer-reject the null hypothesis.…
An ecologist hypothesizes a relationship between wing span of birds and the width of tree branches they use. The ecologist captured male birds, measured their wing span and other characteristics in millimeters, and then marked and released them. During the ensuing winter, the ecologist repeatedly observed the marked birds as they foraged for food on tree branches. He noted the branch diameter on each occasion, and calculated the average branch diameter for each bird in centimeters. The measurement data are below. What can the ecologist conclude with an a of 0.10? wing span branch diameter 79.3 80.1 80.7 81.5 79.5 80.7 81.1 80.5 80.7 1.02 1.04 1.21 1.15 1.21 1.56 1.39 1.31 1.39 a) What is the appropriate statistic? Select- Compute the statistic selected in a): b) Obtain/compute the appropriate values to make a decision about Ho- Critical Value - ; Test Statistic= Decision: -Select- c) Compute the corresponding effect size(s) and indicate magnitude(s). If not appropriate, input and/or…
Shelby measured the volume of a cylinder and determined it to be 68.6 cm³. The teacher told her that she was 4.87% too high in her determination of the volume. What is the actual volume of the cylinder? cm Enter an integer or decimal number, with exactly 3 significant figures [more..]

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