Answer:
a) 0.3495
b) (9.65, 10.35)
Step-by-step explanation:
We are given the following in the question:
Sample mean, = 10 hours
Sample size, n = 64
Alpha, α = 0.02
Population standard deviation, σ = 1.2 hours
a) Margin of error
Formula
Putting values, we get,
b) the sample mean is 10 hours, then the 98% confidence interval
Putting the values, we get,
5.25 is the width
8.25 inch is the length
I subtracted 6 from 27 then divided the answer by 4 to get the width.
And after you find the width, you know what to do next
To find r, you need to isolate it. pi*r^2*60=18,840. divide 18,840 by 60, then pi, it comes out at 100. Now find the square root to get 10
r=10
D Is the answer hope it helps
problem ~ ( 2x^2 ) ( 4x^3 y^2 )
answer ~ 2^3 x^5 y^2
step by step
(2* (x^2)) * (2^2 x^3 * y^2)
2x^2 * 2^2 x^3 y^2
x^2 multiplied by 2^2 = 2^(1+2) = 2^3
2^3 x^5 y^2