Numerade

Questions asked

BEST MATCH

Q2 :Water at 15°C ($\rho$=999.1 kg/m$^3$ and $\mu$=1.138 x $10^{-3}$ kg/ms) is flowing in a 4-cm-diameter and 30-m long horizontal pipe made of stainless steel steadily at a rate of 5 L/s. Determine (a) the pressure drop and (b) the pumping power requirement to overcome this pressure drop.

View Answer

BEST MATCH

2. Melissa is doctoral student in counseling psychology. She has conducted an experiment comparing a new treatment (T) for job stress among teachers to the current standard of no treatment (C). With the principal's support, she is working at a large, local high school and so she has access to the full teaching staff. Her study was approved by the university's IRB. Job stress is measured by a validated, 20 item self-report instrument. In previous studies, the instrument demonstrated a reliability of between 0.6 and 0.8, with score distributions markedly skewed to the right. At the outset, she approached 82 teachers of whom 40 agreed to participate. All participants signed an informed consent form. 22 teachers were randomly assigned to T and the remaining 18 to C. Participants were administered the instrument before treatment began and two months later, one week after treatment was completed. The data of interest was the change in measured job stress from the initial measurement to the final measurement - the 'gain' score. Melissa consulted with a friend, Zoe, in the same doctoral program who had substantial training in quantitative methods. Zoe suggested she use a permutation test to test the null hypothesis that T and C are equivalent in efficacy. a) What is the rationale for using the gain score as the statistic of interest? b) What are the advantages of using a permutation test in this situation? c) Should this be a one-sided or two-sided test? Why? d) Explain to Melissa exactly how to carry out the permutation test using a 10% level of significance. e) Suppose that the result of carrying out the permutation test is "significant at the .10 level". Explain what this means. f) Melissa is very pleased with the result as she feels this proves that her treatment is better than the control. Is this a proper interpretation of the test result? Explain. g) Another colleague told her that she didn't have to go through the trouble of doing a permutation test -- She could have just carried out a usual two-sample t-test with the same validity. Is the colleague correct? Explain. h) In her write-up of the study, Melissa would like to discuss the generalizability of her findings. What advice would you give her?

View Answer

BEST MATCH

Adidas is evaluating a proposal for a new product. If they launch the product, they will use an existing facility in the production process, which they previously acquired for $1 million. They currently lease it to a third party, and they expect to continue to do so if they don't use it for the new product. They rent it out for $108,000 and they expect that to remain flat for the foreseeable future. The project requires immediate investment in CAPX of $1.4 million, which will be depreciated on a straight-line basis over the next 10 years for tax purposes. The project will end after eight years, at which time they expect to salvage some of the initital CAPX and sell it for $438,000. The project requires immediate working capital investments equal to 10% of predicted first-year sales. After that, working capital will remain at 10% of the following year's expected sales. They expect sales to be $4.6 million in the first year and to stay constant for eight years. Total manufacturing costs and operating expenses (excluding depreciation) are 80% of sales, and profits are taxed at 30%. If the cost of capital is 15%, what is the NPV of the project (in millions)? The NPV of the project is $ million. (Round to three decimal places.)

View Answer

BEST MATCH

Separation of businesses into more manageable operating units is termed decentralization. O True False

View Answer

BEST MATCH

you deposit 4300 into an account today, how much will be in the account in 9 years for a) 10% per year simple interest b) 9% per year compounded annually

View Answer

BEST MATCH

2. Glycogen and cellulose are both polysaccharides composed of chains of glucose but have different functions/roles in cells. What is different between the structure of glycogen and cellulose?

View Answer

BEST MATCH

Balikan / Pagganyak $ 112^{\circ} $ Nasa larawan ang mga taong may kinalaman sa kasaysayan ng . sa Pilipinas na namayani hanggang sa kasalukuyan. Hanapin mo sa Hanay B, an akdang isinulat ng mga manunulat sa Hanay A. 2 Hanay A. Jose Corazon de Jesus Severino Reyes Aurelio Tolentino Hanay B. a. Walang Sugat b. Dalagang Bukid c. Kahapon, Ngayon at Bukas d. Ako Ang Daigdig e. Sa aking Mga Kababata f. Isang Punongkahoy

View Answer

BEST MATCH

Statement CLO Pts Assume $\lambda \approx 0$, and compute W/L of M1 in the figure such that the device CLO-2 operates at the edge of saturation. $V_{OD} = 1.8\,\text{V}$ $R_D = 1\,\text{k}\Omega$ $M_1$ 1V Determine the region of operation of M1 in each circuit as shown in the following figures. 1V $M_1$ 0.2V -0.7V CLO-2] 10 -0.5V 1.5V- 10 2. 2V 0.5V- 0.5V 0.9V $M_1$ -0.4V 1V $M_1$ 0.2V -0.2V Note: In the above given problems, unless otherwise stated, assume $\mu_n C_{OX} = 200\,\mu A/V^2$, $\mu_p C_{OX} = 100\,\mu A/V^2$, and $V_{TH} = 0.4\,\text{V}$ for NMOS devices and -0.4 V for PMOS devices. Good Luck

View Answer

BEST MATCH

Which of the following factors is not a cause of financial contagion: Change in expectations or confidence Capital flight Pro-cyclical fiscal policy Over borrowing by financial institutions

View Answer

BEST MATCH

My courses 18AWI BEC-151-97> Part 4 Unemployment and inflation (due March 15) PART 4 EXAM Question 1 Not yet answered Points out of 2.0 Flag question Category #of People Working-Age Population 650 million unemployed 40 million Employed 460 million Discouraged Workers 8 million Refer to the table above showing labor market statistics for a given economy. According to the data above, the unemployment rate for this economy is: Select one: Oa. 8% Ob. 12% Oc. 6% Od. 3.5% Question 2 Not yet answered Points out of 2.0 Flag question Which type of unemployment is described by economist as the result of a shift in the demand for labor, for example from a

View Answer

juana p.