Answer:
The lower bound for a 90% confidence interval is 0.2033
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
For this problem, we have that:
90% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
The lower limit of this interval is:
The lower bound for a 90% confidence interval is 0.2033
Add 4.21 to both side
m=91.864
Hope this helps!!
One hundred and four point zero zero three two.
<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em>
Answer:
74.47%
Step-by-step explanation:
Divide the total number of students by the number who passed
passed/total
35/47
0.74468085
As a percent:
0.74468085*100=74.4680851
Rounded to the nearest hundreth:
74.4680851
74.47%
So, 74.47% passed the geometry test
Hope this helps! :)
Answer:
He sold 960 kg
Step-by-step explanation:
Let the initial stock measure be x kg
So if he sold 45% ; what he sold was;
45/100 * x = 0.45x
So the quantity left would be;
x - 0.45x = 0.55x
So what was left is 96kg more than what was sold
Mathematically, we have this as;
0.55x - 0.45 x = 96
0.1x = 96
x = 96/0.1
x = 960 kg
