A copper wiring is being tested for its strength (MPa) with N(μ.O=0.42). Multiple samples have obtained strengths as shown in the databelow.68.79 69.03 68.4968.96 69.28 69.2068.27 68.9569.6669.0469.5868.2369.2168.85 68.5368.9968.8268.58 69.21 68.9569.22 68.9169.1969.1469.0069.52 69.1468.4368.86 68.8669.31 69.44 68.90 69.47 69.69 68.60• What is the probability that a sample mean has strength of 68.8 MPa?• From the data, obtain an Event 1 by selecting 5 random groups with asample size of 5. From the same data. obtain an Event 2 by selecting arandom set of 3 three groups with an n of 3.• Compute for the mean and variance of selected sample Events 1 and 2.In one sentence. which of the two has a larger variance and why?

Given that the copper wiring is being tested for its strength with Nμ,σ=0.42. There are 6 random…

Answered: What is the probability that a sample…

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter29: Tolerance, Clearance, And Interference

Section: Chapter Questions

Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...

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Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector measures 10 spacers and records the following thicknesses: 0.372" 0.376" 0.379" 0.375" 0.370" 0.373" 0.377" 0.378" 0.371" 0.380" Which spacers are defective (above the maximum limit or below the minimum limit)? All dimensions are in inches.
A copper wiring is being tested for its strength (MPa) with N(μ. O=0.42). Multiple samples have obtained strengths as shown in the data below. 68.79 68.96 68.27 69.22 69.52 69.31 69.03 68.49 68.85 68.53 69.28 69.20 68.82 68.99 68.95 68.58 69.21 68.95 68.91 69.19 69.14 69.00 69.14 68.43 68.86 68.86 69.44 68.90 69.47 69.69 69.66 69.04 69.58 68.23 69.21 68.60 From the data, obtain an Event 1 by selecting 5 random groups with a sample size of 5. From the same data. obtain an Event 2 by selecting a random set of 3 three groups with an n of 3. • What is the probability of the difference of the sample Events 1 and 2? • In two sentences or less which of the two Events is a better estimator of the population mean (support this answer with computations).
1:37 PM Wed Apr 21 * 72% 88 Q Stats Exam •.. Untitled Notebook (1) Stats Exam 37. The manager of Green Valley medical center claims that the median number of patients seen by doctors who work at the center is 85. To test this claim, 20 days are randomly selected and the number of patients seen is recorded as shown. At a=0.1, test the claim. (Use sign test) 86 82 90 88 85 85 94 93 69 61 89 90 91 94 78 85 71 77 69 77
Total plasma volume is important in determining the required plasma component in blood replacement therapy for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that a random sample of 45 male firefighters are tested and that they have a plasma volume sample mean of x = 37.5 ml/kg (milliliters plasma per kilogram body weight). Assume that o = 7.10 ml/kg for the distribution of blood plasma. When finding an 99% confidence interval, what is the critical value for confidence level? (Give your answer to two decimal places.) z. = (a) Find a 99% confidence interval for the population mean blood plasma volume in male firefighters. What is the margin of error? (Round your answers to two decimal places.) lower limit upper limit margin of error (b) What conditions are necessary for your calculations? (Select all that apply.) O n is large o is unknown the distribution of volumes is uniform O o is known O the distribution…
Total plasma volume is important in determining the required plasma component in blood replacement therapy for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that a random sample of 40 male firefighters are tested and that they have a plasma volume sample mean of x = 37.5 ml/kg (milliliters plasma per kilogram body weight). Assume that o = 7.10 ml/kg for the distribution of blood plasma. When finding an 99% confidence interval, what is the critical value for confidence level? (Give your answer to two decimal places.) (a) Find a 99% confidence interval for the population mean blood plasma volume in male firefighters. What is the margin of error? (Round your answers to two decimal places.) lower limit upper limit margin of error (b). What conditions are necessary for your calculations? (Select all that apply.) n is large the distribution of volumes is normal o is unknown the distribution of volumes is uniform…
Please solve for p value ,determine weather to reject hypothesis and state the conclusion for enough evidence
Jllustration 36. A collar manufacturer is considering the production of a new style of collar Vio attract young men. The following statistics of neck circumferences are available based upon measurements of a typical group of college students: Mid-value (in inches) : 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 016.0 No. of students 02 : 16 36 60 76 37 A 18 308-012 Compute the standard deviation and use the criterion X+30 where o is the standard deviation and X is the arithmetic mean to determine the largest and smallest size of the collar he chould make in order to meet the needs of practically all the customers bearing in mind that collars are worn on an average 1 inch longer than neck size.
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Total plasma volume is important in determining the required plasma component in blood replacement therapy for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that a random sample of 42 male firefighters are tested and that they have a plasma volume sample mean of x = 37.5 ml/kg (milliliters plasma per kilogram body weight). Assume that a 8.00 ml/kg for the distribution of blood plasma. When finding an 99% confidence interval, what is the critical value for confidence level? (Give your answer to two decimal places.) Zc = (a) Find a 99 % confidence interval for the population mean blood plasma volume in male firefighters. What is the margin of error? (Round your answers to two decimal places.) lower limit upper limit margin of error (b) What conditions are necessary for your calculations? (Select all that apply.) o is known a is unknown n is large the distribution of volumes is uniform the distribution of…
NOTE: PLEASE ANSWER THE LAST 3 NUMBERS 45-47
A random sample of size 144 from a normal population has a mean of x-bar = 60.8 and s = 3.6. The p-value for this test is approximately Ho: H= 60 %3D Họ: H+60 .0076 .9924 .9962 .0038
A student decides to spin a dime and determine the proportion of times it lands on heads. The student spins the dime 25 times and records that it lands on heads 17 times. Let p = the true proportion of times the dime would land on heads when spun. Under the assumption that the true proportion is 0.5, 100 simulated proportions for samples of size 25 are shown in the dotplot. Using the dotplot, what do the two dots above 0.70 represent? There is a 2 in 100 chance that the true proportion of heads is 0.7. In two simulated samples of 25 spins, the proportion of heads is 0.7. There is a 2 in 100 chance that the sample proportion of heads is 0.7. In two simulated samples of 25 spins, the true proportion of heads is 0.7.

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What is the probability that a sample mean has strength of 68.8 MPa? From the data, obtain an Event 1 by selecting 5 random groups with