Answer:
lower limit : 36.44
upper limit : 39.56
Step-by-step explanation:
Given :
s = 9
n = 90
x = 38.9
Alpha, α = 0.10
∴ 
The confidence interval is :




Therefore,
lower limit : 36.44
upper limit : 39.56
Answer:
x = 24
Step-by-step explanation:
In order to solve for x, you need to isolate it on one side of the equal sign. So in this case you need to multiply both sides by 4, in order to cancel the dividing factor 4 that appears in the denominator :

5.39 is an rational number
Answer:
h=4in
length=5inch
width=8inch
volume=160inch3
Step-by-step explanation:
using the formula: v=whl
h=V
lw=160
5·8=4in
40 sets of tires. I learned this by looking up your question because it is incomplete.