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Mnenie [13.5K]
3 years ago
13

You are asked to study the causal effect of hours spent on employee training​ (measured in hours per worker per​ week) in a manu

facturing plant on the productivity of its workers​ (output per worker per​ hour). Write in the box the option letter ​(a, b, c or​ d) on the right that best describes the statement on the left. Choose a random group of employees to receive ten hours per week in additional training for a period of four weeks.​ Then, estimate the difference in productivity between workers who received the additional training and those that did not
Engineering
1 answer:
laiz [17]3 years ago
4 0

Answer:

The correct option is B.

Explanation:

"An ideal randomized controlled experiment " best describes the statement mentioned in the question.

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Thermoplastics burn upon heating. a)-True b)- false?
miv72 [106K]

Yes, It is indeed true that Thermoplastics and thermosettingplastics burn upon heating.

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3 years ago
What educational degree does an engineering technologists hold
Pavlova-9 [17]
Engineer technicians typically hold a two-year associates degree, while engineering technologists likewise hold a bachelors degree.
7 0
4 years ago
Air is pumped from a vacuum chamber until the pressure drops to 3 torr. If the air temperature at the end of the pumping process
malfutka [58]

Answer:

The final pressure is 3.16 torr

Solution:

As per the question:

The reduced pressure after drop in it, P' = 3 torr = 3\times 0.133\ kPa

At the end of pumping, temperature of air, T = 5^{\circ}C = 278 K

After the rise in the air temperature, T' = 20^{\circ}C = 293 K

Now, we know the ideal gas eqn:

PV = mRT

So

P = \frac{m}{V}RT

P = \rho_{a}RT          (1)

where

P = Pressure

V = Volume

\rho_{a} = air\ density

R = Rydberg's constant

T = Temperature

Using eqn (1):

P = \rho_{a}RT

\rho_{a} = \frac{P}{RT}

\rho_{a} = \frac{3 times 0.133\times 10^{3}}{0.287\times 278} = 0.005 kg/m^{3}

Now, at constant volume the final pressure, P' is given by:

\frac{P}{T} = \frac{P'}{T'}

P' = \frac{P}{T}\times T'

P' = \frac{3}{278}\times 293 = 3.16 torr

7 0
4 years ago
How many gallons of water is needed to fill a pool.
zalisa [80]

Answer:

depends on the size

Explanation:

Length x width x depth x 7.5 = volume (in gallons)

Length times width gives the surface area of the pool. Multiplying that by the depth gives the volume in cubic feet. Since there are 7.5 gallons in each cubic foot, multiply the cubic feet of the pool by 7.5 to arrive at the volume of the pool, expressed in gallons.

6 0
3 years ago
Read 2 more answers
The primary difference between integrated/concurrent engineering development and functional/sequential development is: Integrate
gogolik [260]

Answer:

Integrated development spends more money up front to order to save money in later stages.

Explanation:

The primary difference between integrated/concurrent engineering development and functional/sequential development is: Integrated development spends more money up front to order to save money in later stages.

Cost of integrated development is higher in the initial stages where setup has be made and proper training and education of employees are required and once it is done. It will save money in later stages.

7 0
4 years ago
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