An airplane is headed on a bearing of 159° at an airspeed of 211 km per hr. A 44 km per hr wind is blowing from a direction of 2
360. Find the groundspeed and resulting bearing of the plane. The groundspeed is km per hr. (Round to the nearest integer as needed.)
1 answer:
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Answer: (110.22, 125.78)
Step-by-step explanation:
The confidence interval for the population mean is given by :-
Given : Sample size = 463
Significance level :
Critical value :
We assume that the population is normally distributed.
Now, the 90% confidence interval for the population mean will be :-
Hence, 99% confidence interval for the mean study time of all first-year students = (110.22, 125.78)