Engineering, 30.11.2019 07:31 jdilla98

2. * give a scatterplot of this data and comment on the direction, form and strength of this relationship. a. determine the least-squares estimate equation for this data set. b. give the r2, comment on what that means. c. give the residual plot based on the least-squares estimate equation. d. test if this least-squares estimate equation specify a useful relationship between commuting distance and commuting time.

Answers: 1

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:10

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Answers: 3

Answer

Engineering, 04.07.2019 18:20

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.

Answers: 2

Answer

Engineering, 04.07.2019 19:10

Abarometer contains mercury with a density of 13600 kg/m3. atmospheric conditions are 95.8 kpa and 20 °c at 20 °c, the vapor pressure of the mercury is 0.000173 kpa. the column of mercury will rise to a height of most nearly. select one: a)- 0.38 m b)- 0.82 m c)- 0.48 m d)- 0.72 m

Answers: 1

Answer

Engineering, 04.07.2019 19:10

Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.

Answers: 2

Answer

You know the right answer?

2. * give a scatterplot of this data and comment on the direction, form and strength of this relatio...

Questions