Answer:
-6
Step-by-step explanation:
Answer:
We reject H₀ , we have enough evidence, women today are taller than in 1990
Step-by-step explanation:
The problem is one tail test. We assume height of women follows normal distribution with σ = 0,5 in.
Then null hypothesis : H₀ ⇒ μ₀ = 63.7
Alternative hipothesis: Hₐ ⇒ μ > 63.7
Significance level 0,05 ⇒ z(c) = 1.645
Statistic z :
z (c) = ( μ - μ₀ ) / (0,5/√45) ⇒ z(c) = (63.9 - 63.7 ) / (0,5 / √45)
z(c) =( 0,2* √45 ) / 0,5
z(c) = 2,68
Evaluation : z(s) > z(c) 2.68 > 1.645
z(c) is in the rejection area we reject H₀
That makes no sense bc you can't find the percent of error without another number
Answer:
Let's simplify step-by-step.
3e−6e+3e−4e
=3e+−6e+3e+−4e
Combine Like Terms:
=3e+−6e+3e+−4e
=(3e+−6e+3e+−4e)
=−4e
Step-by-step explanation:
You are welcome
When in point-slope form, the number next to the y and the x by themselves will be the opposite of what they would actually be as coordinates. This means that the y-coordinate, -1, will show up as y+1. This eliminates A and B out of the choices.
The slope is -3, which will be the number outside of the parentheses, which is what we see in C’s answer or -3(x-10).
Therefore, the answer is C: y+1 = -3(x-10).