What fraction of the class gets a-b and c

Reference no: EM13970241

1. Bridies' Bearing Works manufactures bearing shafts whose diameters are normally distributed with parameters µ = 1, σ = .002. The buyer's specifications require these diameters to be 1.000 ± .003 cm. What fraction of the manufacturer's shafts are likely to be rejected? If the manufacturer improves her quality control, she can reduce the value of σ. What value of σ will ensure that no more than 1 percent of her shafts are likely to be rejected?

2. A final examination at Podunk University is constructed so that the test scores are approximately normally distributed, with parameters µ and σ. The instructor assigns letter grades to the test scores as shown in Table 5.10 (this is the process of "grading on the curve"). What fraction of the class gets A, B, C, D, F?

Reference no: EM13970241

Questions Cloud

Write a research paper about hazardous material : Write a research paper about hazardous material. Hazardous Material release in the last 25 years anywhere in the world and its impact to the environment, human health and measures taken.

How can the virtual organization site be improved : Recommendations for improving the Virtual Organization site based on the evaluations (consider the similar sites and the current Virtual Organization site - how can the Virtual Organization site be improved?).

What is the probability that it will still run after 4 years : Suppose that the number of years a car will run is exponentially distributed with parameter µ = 1/4. If Prosser buys a used car today, what is the probability that it will still run after 4 years?

Differentiate between valuation, depreciation, amortization : Write a 350- to 700-word paper in which you differentiate between valuation, depreciation, amortization, and depletion. Is it appropriate to calculate depreciation using two different methods? Why?

What fraction of the class gets a-b and c : What fraction of the manufacturer's shafts are likely to be rejected? If the manufacturer improves her quality control, she can reduce the value of σ.

Discuss what the solvency ratios reveal about the company : Discuss what the profitability ratios reveal about the company, including any description of benchmarks, standard measurements, or other types of analysis used once the ratio amounts are known.

What information systems skills and knowledge are essential. : Identify the major information systems which are currently used in many businesses. Compare these information systems and identify the main uses.

Find the density functions : Let X be a random variable with density function fX , and let Y = X + b, Z = aX, and W = aX + b, where a /= 0. Find the density functions fY , fZ , and fW.

What is the total manufacturing cost assigned to job : What is the total manufacturing cost assigned to Job A-200. If Job A-200 consists of 50 units, what is the average cost assigned to each unit included in the job.

User Account

All Pages