Mathematics, 07.01.2021 19:50, Anonymouslizard
An English class took a field trip to a writing conference on a charter bus. They noticed that, even though they traveled in rain on the way back, the trip back took a shorter amount of time than the trip to the conference did.
Which of the following is a valid conclusion? Assume the bus traveled the same route both directions and did not stop.
A.
The rain caused a decrease in travel time.
B.
There is a positive correlation between rain and travel time.
C.
An increase in the speed of the bus caused a decrease in travel time.
D.
There is no correlation between bus speed and travel time.
Answers: 3
Mathematics, 21.06.2019 22:20, skyhighozzie
(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)
Answers: 2
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