Answer:
The lower limit is 75.04
The upper limit is 78.96
Step-by-step explanation:
From the question we are told that
The sample size is
The sample mean is
The standard deviation is
Given that the confidence level is 95% then the level of significance is mathematically represented as
The critical value for obtained from the normal distribution table is
Generally the margin of error is mathematically represented as
=>
=>
The 95% confidence interval is mathematically represented as
=>
=>
19.) Least to greatest:
Luxembourg
Singapore
Australia
Egypt
Brazil
Looking at the angles of the triangles
N=S
M=R
O=T
so MON would be RTS
The given question describes a right triangle with with one of the angles as 20 degrees and the side adjacent to the angle 20 degrees is of length 5,000 feet. We are looking for the length of the side opposite the angle 20 degrees.
Let the required length be x, then
Therefore, the height of the airplane above the tower is 1,819.85 feet.