Answer:
The correct answer is
(0.0128, 0.0532)
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence interval , 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:
In a random sample of 300 circuits, 10 are defective. This means that and
Calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool.
So = 0.05, z is the value of Z that has a pvalue of , so .
The lower limit of this interval is:
The upper limit of this interval is:
The correct answer is
(0.0128, 0.0532)
y = x²-5
f(x) = x² - 5
f(-4) = (-4)² - 5
f(-4) = 16 - 5
f(-4) = 11
<h3>
Answer : C.11</h3>
give me brainliest pls hehe
Answer: 24
Step-by-step explanation:
In the morning, a farmworker packed 4 pints of strawberries every 4 minutes. The amount of pints of strawberries packed in an hour would be:
= 4/4 × 60
= 60 pints of strawberries
In the afternoon, she packed 3 pints of strawberries every 5 minutes. The amount of pints of strawberries packed in an hour would be:
= 3/5 × 60
= 36 pints of strawberries
The difference between her morning and afternoon packing rates, in pints per hour would be:
= 60 - 36
= 24
Answer:
x = 10
Step-by-step explanation:
First look at the big overall triangle.
It has a right angle and another angle of 44; therefore the missing angle is (since the sum of angles inside a triangle is 180)
180 - 90 - 44 = missing angle
missing angle (top) = 46; now the angle of a straight line is 180 and they give you 56° which has a supplementary angle of 180 - 56 = 124°.
Now we know that the triangle that include the x has angles 46° (missing top angle), and supplementary angle of 124°. Therefore
x = 180 - 46 - 124
x = 10
Answer:
--------------------------------
Given lines:
- 3x + y = 1 and y + 6 = - 3x
Convert both equations to slope-intercept form of y = mx + b:
- 3x + y = 1 ⇒ y = - 3x + 1
- y + 6 = - 3x ⇒ y = - 3x - 6
Slopes are same, so these are parallel lines, and the distance between parallel lines is:
- , where b₁, b₂ - y-intercepts, m- slope
Substitute and calculate: