Answer:
Mean hourly wages in at least 2 metropolitan areas are different
Step-by-step explanation:
0.05 level indicates a 5% risk of concluding that a difference exists even though there is no actual difference.
A test statistic is a refers to a quantity derived from the sample and it is used in statistical hypothesis testing.
A statistical hypothesis refers to a hypothesis that can be tested on the basis of observing a process that has been modelled as compared to a set of random variables.
It is a method of statistical inference.
In the given question,the test statistic was computed to be 4.91 at the o.05 level as seven employees were included from Area A, nine from Area B, and twelve from Area C when a preliminary study of hourly wages paid to unskilled employees in three metropolitan areas was conducted.
This implies mean hourly wages in at least 2 metropolitan areas are different.
Answer:
Option a is correct.
The rotation for the transformation to △A'B'C' is , rotation of 90 degree.
Explanation:
In △ABC
The coordinate of point A = (1,1) , B = (3,1) and C = (1,4).
Rotate triangle ABC 90 degree's around the origin;
The rule for this transformation is:- (x,y) to (-y ,x)
A(1,1) to A' (-1,1) ,
B(3,1) to B'(-1 , 3) and
C(1,4) to C' (-4,1)
therefore, rotation of 90 degree counter clockwise rotation around the origin results in the transformation of △ABC to △A'B'C'
If you have a TI-84 graphing calculator, you should type the function in using the y= key and hit 2nd calculate to let the calculator calculate the zeroes for you.
x=-20.30, the rest are imaginary
Answer:
y4z
Step-by-step explanation: