Answer:
The area of the sector is 
Step-by-step explanation:
we know that
The area of a complete circle (9π units^2) subtends a central angle of 2π radians
so
using proportion
Find out the area of a sector , if the central angle is equal to π/9 radians
B and C, because we're looking for numbers that are greater than 100 but less than 150, basically means numbers between 100 and 150
Multiply the number together ....
(-3x)4 = -12x
The sum of 12 plus 34 is 46
Answer:
c. It will decrease the estimated standard error and increase the likelihood of rejecting H0
Step-by-step explanation:
Given that a sample size is decreased after keeping other factors constant.
In hypothesis testing if sample size is decreased while others are kept constant we have the following
The margin of error = critical value *std dev/sqrt n
In other words, the margin of error is inversely proportional to square root of sample size.
So if n increases, margin of error decreases, making confidence interval narrower.
This gives more chance for rejecting null hypothesis.
Hence correct answer would be
c. It will decrease the estimated standard error and increase the likelihood of rejecting H0
