Answer:
a) Option A)
b) Point estimate of difference = -78
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = $1,503
Sample mean,
= $1,425
Sample size, n = 25
Sample standard deviation, s = $160
We have to carry a hypothesis test that the mean annual premium in Pennsylvania is lower than the national mean annual premium.
a) First, we design the null and the alternate hypothesis
b) Point estimate of the difference between the mean annual premium in Pennsylvania and the national mean
Point estimate of difference =
Mean annual premium in Pennsylvania - National mean

Thus,
Point estimate of difference = -78
Answer: The answer is 81
Step-by-step explanation:
because 9x9=81 so u don't multiply the whole square like this
9x9x9x9=36 thats wrong and that was my mistake but yeah it would be 81.
Answer:
(8,-5)
Step-by-step explanation:
Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.
Point Form:
(
8
,
−
5
)
Equation Form:
x = 8
, y = −
5
Answer:
all real numbers greater than or equal to -3
Explanation
The curve goes till -3 on the y axis