<span>500 = 0.5 kw
0.5 * 8 * 7.5 = 30c</span>
Step-by-step explanation:
117+114= 231
360-231= 129
Now find two numbers that add up to 129
256 being rounded would become 260 and 321 would become 320 so adding up the estimates the would be 580 (real answer is 577)
In this case, since the standard deviation is known and
the sample size is less than 30, we will use the t-distribution. The formula
for calculating the confidence interval is:
Confidence Interval = X ± t * s / sqrt(n)
Where,
X = sample mean = $664.14
t = t score (taken from standard distribution tables)
s = standard deviation = $297.29
n = sample size = 14
At Degrees of Freedom = n – 1 = 13 and 98% Confidence
interval, z = 2.65
Substituting the values in the equation:
Confidence Interval = 664.14 ± 2.65 * 297.29 / sqrt(14)
Confidence Interval = 664.14 ± 210.55
Confidence Interval = 453.59 to 874.69
<span>
ANSWER: <span>
$453.56
< CI < $874.72</span></span>
I am guessing you mean quantity instead of quality so in a year there is 8760 hours, so just take the 33,300 and divide it by 8760.
And you should get something like 3.801 people per hour