Answer:
B) At alpha = 0.01, there is insufficient evidence to conclude the true mean wind speed at the site exceeds 25 mph.
Step-by-step explanation:
P-value of the test:
The p-value of the test is the probability of finding a sample mean above 25.
We are using the t-distribution, with test statistic t = 1.25 and 43 - 1 = 42 degrees of freedom. This probability is a right-tailed test.
With the help of a calculator, this p-value is of 0.1091.
Since the p-value of the test is 0.1091 > 0.01, at 
there is insufficient evidence to conclude the true mean wind speed at the site exceeds 25 mph, and the correct answer is given by option B.
Yes, as long as it's between the two numbers
51) -4 and 1
52) -1 and -3
53) -9 and -10
Answer:
D
Step-by-step explanation:
-2 is the y intercept of the first system
Answer:
A signal from the transmitter will be picked up through out the 57.38 mile drive
Step-by-step explanation:
The radius of the transmitter = 63 miles
Therefore, since both the location 38 miles north and the location 43 miles east of the transmitter are within the the radius, the transmission of the transmitter will be received through out the straight line journey
The length of the travel path is given by;
Distance from 38 miles north of the transmitter to distance of 43 miles east of transmitter = 
.
Answer:
Step-by-step explanation:
We have to determine the angle Ф
Given the triangle, we can determine that
sin Ф = opposite / hypotenuse
Here,
so
sin Ф = opposite / hypotenuse
Thus,
