According to Chemical Engineering an important property of fiber According to Chemical Engineering an important property of fiber is its water absorbency. The average percent absorbency of 25 randomly selected pieces of cotton fiber was found to be 20 with a standard deviation of 1.5. A random sample of 25 pieces of acetate yielded an […]
Read More »Cost of debt capital Tiki Bar has a cost of equity capital of 15%, a before-tax cost of debt of 8%, and a debt to equity ratio of .40, with a tax rate of 35%. It is considering a 100 million dollar investment today that will yield annual incremental after-tax cash flows of 30 million […]
Read More »Cost Accounting – Please show how to come up with answer Alpha Company manufactures customized motors on a job-order basis. Job 492 is an order for 100 units. It requires the following: direct materials $3,000 direct labor ($10/hr) 1,000 overhead (150% DL$) 1,500 After inspection, 2 units required rework which required 8 additional direct labor […]
Read More »A textile fiber manufacturer is investigating a new drapery yarn A textile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. The company wishes to test the hypothesis against using a random sample of four specimens. (a) […]
Read More »In the manufacture of electroluminescent lamps, several differen In the manufacture of electroluminescent lamps, several different layers of ink are deposited onto a plastic substrate. The thickness of these layers is critical if specifications regarding the final color and intensity of light of the lamp are to be met. Let X and Y denote the […]
Read More »According to a Johns Hopkins University study published in the According to a Johns Hopkins University study published in the American Journal of Public Health, widows live longer than widowers. Consider the following survival data collected on 100 widows and 100 widowers following the death of a spouse. Can wc conclude at the 0.05 level […]
Read More »According to the published reports, practice under fatigued cond According to the published reports, practice under fatigued conditions distorts mechanisms which govern performance. An experiment was conducted using 15 college males who were trained to make a continuous horizontal right-to-left arm movement from a micro switch to a barrier, knocking over the barrier coincident with […]
Read More »A multiple regression model was used to relate y = A multiple regression model was used to relate y = viscosity of a chemical product to x1 = temperature and x2 = reaction time. The data set consisted of n = 15 observations. (a) The estimated regression coefficients were and. Calculate an estimate of mean […]
Read More »A random sample of 50 observations was made on the A random sample of 50 observations was made on the diameter of spot welds and the corresponding weld shear strength. (a) Given that r = 0.62, test the hypothesis that p = 0, using a = 0.01. What is the P-value for this test? (b) […]
Read More »A client from the Department of Mechanical Engineering approache A client from the Department of Mechanical Engineering approached the Consulting Center at Virginia Polytechnic Institute and State University for help in analyzing an experiment dealing with gas turbine engines. Voltage output of engines was measured at various combinations of blade speed and voltage measuring sensor […]
Read More »
WebMail