Answer:
No solution
Step-by-step explanation:
–2(3x – 1) = –6x – 1
-6x + 2 = -6x - 1
2 = -1 is a false word
So, no solution
Answer:
b) use a two-sided test instead of a one sided test.
Step-by-step explanation:
If we are using a significance level of 0.05, then the two-tailed test assigns half alpha to test for statistical significance in one direction and half alpha to test statistical significance in the other direction. This implies that .025 is present in each tail of the test statistical distribution. When using the two-tailed test, regardless of the direction of the relationship you assume, we test the possibility of the relationship in both directions.
Answer:
Step-by-step explanation:
We are given the equation:
And we want to determine the value of <em>k</em> such that the graph passes through the point (-2, 1).
Hence, when <em>x</em> = -2, <em>y</em> = 1. Substitute:
Simplify:
Hence:
The first thing we are going to do for this case is to define the cosine and the tangent:
For the cosine we have:
Where,
C.A: adjacent leg
h: hypotenuse
On the other hand we have that the tangent is given by:
Where,
Where,
C.O: opposite leg
C.A: adjacent leg
We have then:
Part A
Simplifying:
Part B
Answer: The population proportion is between 0.34 and 0.46 .
Step-by-step explanation:
Interpretation of 95% confidence interval : A person can be about 95% confident that the true population parameter lies in the interval.
A confidence interval is constructed for an unknown population proportion, p. A sample is collected, and the 95% confidence interval is calculated to be 0.40 ± 0.06.
i.e. Lower limit =
Upper limit =
i.e. 95% confidence interval = (0.34, 0.46)
i.e. A person can be about 95% confident that the true population proportion (p) lies in the interval (0.34, 0.46).
⇒ It is most accurate to say that there is approximately 95% confidence in the assertion that:
The population proportion is between 0.34 and 0.46 .