subject
Physics, 31.03.2021 02:20 JusSomeRandomGuy

The National Institute of Standards and Technology (NIST) supplies a 'standard liquid' whose electrical conductivity is supposed to be exactly 5. A certain shipment of the liquid sat outside in warm weather for several extra hours in a truck trapped on an interstate because of a rock slide. Is there reason to think that the true conductivity of this shipment has decreased? To find out, NIST measures the conductivity six times, using an SRS of samples from the affected shipment. The sample's mean conductivity is 4.78. Past study indicates that the population of all possible measurements of conductivity has standard deviation σ = 0.2. Is the sample outcome statistically significant at the α = 0.03 level? A) - 2.69.
B) Yes, we have proven that the shipment's conductivity is too low.
C) Yes.
D) No.

ansver
Answers: 2

Other questions on the subject: Physics

image
Physics, 22.06.2019 09:30, kaleahlove13
Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?
Answers: 2
image
Physics, 22.06.2019 15:30, haha81
Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.
Answers: 2
image
Physics, 22.06.2019 23:00, Amyjoe23
During the past 150 years in the united states, how did energy consumption compare to population growth
Answers: 1
image
Physics, 23.06.2019 05:50, geekymuin
Happiness is to senipah as 517768399 is to what?
Answers: 1
You know the right answer?
The National Institute of Standards and Technology (NIST) supplies a 'standard liquid' whose electri...

Questions in other subjects:

Konu
Chemistry, 18.12.2020 22:20