An electric train is moving north at 100mph and a wind is blowing to the west at 10mph. Which way does the smoke blow?
2 answers:
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Okay... so we know that the train is moving north, which means the Apposing wind (and Friction) would be coming from the south.
We also know that the wind is coming from the West.
And based upon this information, we know that the Smoke has to be going South West because when an Apposing wind is pushed by a natural wind, the object being affected by both winds moves in both directions (a.k.a. diagonal)...
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Answer:
The confidence interval is
Step-by-step explanation:
We have given,
The Z interval (23.305,25.075)
Mean
Sample n=30
To find : The confidence interval?
Solution :
We know, The confidence interval is in the format of
E denotes the margin of error,
Where, U is the upper limit U=25.075
L is the lower limit L=23.305
Substitute the value of E and in the formula,
Therefore, The confidence interval is