Answer:
0.1
Step-by-step explanation:
Answer:
area of triangle = 135 mm²
Step-by-step explanation:
Area of a triangle = 1/2 × b × h
Area of a triangle = 1/2 × 27 × 10
Area of a triangle = 135 mm²
Answer:
CI = {9.947; 12.253}
Step-by-step explanation:
Average time (μ) = 11.1 years
Standard deviation (σ) = 4.5 years
Sample size (n) = 101 responses
Z-score for a 99% confidence interval (z) = 2.576
The confidence interval is defined by the following expression:
The lower (L) and upper (U) limits of the 99% confidence interval is:
The 99% confidence interval for the mean number of years general managers of major-chain hotels have spent with their current company is CI = {9.947; 12.253}
When you see questions of this nature, test the individual inequalities and look out for their intersection.
For
Choose a point in the lower or upper half plane created by the line
The above line is the one which goes through the origin.
Now testing (1,0) yields,
That is,
This statement is true. So we shade the lower half of
For
We test for the origin because, it is not passing through the origin.
This yields
This statement is false so we shade the upper half.
The intersection is the region shaded in B. The top right graph