The sum of a number times 4 and 18 is at least 25
1 answer:
You might be interested in
We have that
y=x²<span>+5x+3
y=</span>√(<span>2x+5)
using a graph tool
see the attached figure
the solution is
x=-0.175
y=2.156
therefore
the answer is the option
</span>B.) (-0.2, 2.1)
y=x²<span>+5x+3
y=</span>√(<span>2x+5)
using a graph tool
see the attached figure
the solution is
x=-0.175
y=2.156
therefore
the answer is the option
</span>B.) (-0.2, 2.1)
Given:
Population proportion,
= 57% = 0.57
Population standard deviation, σ = 3.5% = 0.035
Sample size, n = 40
Confidence level = 95%
The standard error is
The confidence interval is
where
= sample proportion
z* = 1.96 at the 95% confidence lvvel
The sample proportion lies in the interval
(0.57-1.96*0.0783, 0.57+1.96*0.0783) = (0.4165, 0.7235)
Answer: Between 0.417 and 72.4), or between (41% and 72%)
Population proportion,
Population standard deviation, σ = 3.5% = 0.035
Sample size, n = 40
Confidence level = 95%
The standard error is
The confidence interval is
where
z* = 1.96 at the 95% confidence lvvel
The sample proportion lies in the interval
(0.57-1.96*0.0783, 0.57+1.96*0.0783) = (0.4165, 0.7235)
Answer: Between 0.417 and 72.4), or between (41% and 72%)