Answer:
The 95% confidence interval for the population mean is between 25.86 and 28.14.
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 27 - 1.14 = 25.86
The upper end of the interval is the sample mean added to M. So it is 27 + 1.14 = 28.14
The 95% confidence interval for the population mean is between 25.86 and 28.14.
Answer:
81 inches squared
Step-by-step explanation:
You just multiply the area by the hight and get your answer
(p + 6)/8 = (p - 6)/7
7(p + 6) = 8(p - 6)
7p + 42 = 8p - 48
8p - 7p = 42 + 48
p = 90
Answer:
Percentage of Karaks= 40%
Step-by-step explanation:
Giving the following information:
The total number of Karaks involved in flower cultivation is 1000.
Total population= 2,500
<u>To calculate the percentage of Karaks, we need to use the following formula:</u>
<u></u>
Percentage of Karaks= (1,000 / 2,500)*100
Percentage of Karaks= 40%
Answer:
38 boxes
Step-by-step explanation:
12x25=300 bars
300/8= 37.5 boxes of bars,
so minimum box amount would be 38 boxes
I hope it helped