Answer:
24.6 < μ < 27.2
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so 
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 25.9 - 1.3 = 24.6 pounds.
The upper end of the interval is the sample mean added to M. So it is 25.9 + 1.3 = 27.2 pounds.
So the correct answer is:
24.6 < μ < 27.2
Answer:
There are as many definitions of empire as there have been empires, but some pretty familiar elements appear in most of them. It starts with working on our “control issues”.
Answer:
5mx5mx5m
Step-by-step explanation:
Mulyiply 5m three timea
Answer:
<em> 3 + 3x = 45 ; x = 14 </em>
Step-by-step explanation:
45 = 3x + 3 ⇒ <em>x = 14</em>
5=1/2v-3
5=1/2v
+3 +3
8=1/2v
/1/2 /1/2
16=v
