Answers
Answer:
1
Step-by-step explanation:
Related Questions
You apply for a job and have to take a drug test. You are curious about the error rate for the test so you do some research. You find a study where 47 out of 382 test results using this test were wrong (either a false positive or a false negative). The company that produces the drug test claims that less than 14% of the test results are wrong. Test if this seems accurate.
Answers
Answer:
Test statistic Z = -1.0
|Z| = |-1.0| < 1.96 at 0.05 level of significance.
The null hypothesis is accepted
The company that produces the drug test claims that less than 14% of the test results are wrong
Step-by-step explanation:
Step(i):-
Given that the population proportion P = 14% =0.14
Given that the sample size 'n' = 382 tests
Given that find a study where 47 out of 382 test results using this test were wrong (either a false positive or a false negative).
Sample proportion
[tex]p = \frac{x}{n} = \frac{47}{382} = 0.1230[/tex]
Null hypothesis: H₀ : P = 0.14
Alternative Hypothesis:H₁ : P≠ 0.14
Step(ii):-
Test statistic
[tex]Z = \frac{p-P}{\sqrt{\frac{PQ}{n} } }[/tex]
[tex]Z = \frac{0.1230-0.14}{\sqrt{\frac{0.14 X0.86}{382} } }[/tex]
Z = - 1.0
|Z| = |-1.0| < 1.96 at 0.05 level of significance.
Final answer:-
The null hypothesis is accepted
The company that produces the drug test claims that less than 14% of the test results are wrong
Write an equation of the line below.
Answers
Answer (assuming it can be in slope-intercept form):
[tex]y = \frac{4}{5} x[/tex]
Step-by-step explanation:
1) First, find the slope of the line. Use the slope formula [tex]m = \frac{y_2-y_1 }{x_2-x_1}[/tex] and substitute the x and y values of two points on the line into it. We can see that the line passes through (0,0) and (5,4), so let's use those points for the formula and solve:
[tex]m = \frac{4-0}{5-0} \\m = \frac{4}{5}[/tex]
So, the slope is [tex]\frac{4}{5}[/tex].
2) Next, identify the y-intercept of the line. The y-intercept is the point at which the line intersects the y-axis. We can see that the line intersects the y-axis at (0,0), so that must be the y-intercept.
3) Now, write the equation of the line in slope-intercept form using the [tex]y = mx + b[/tex] format. The number in place of [tex]m[/tex] represents the slope, so substitute [tex]\frac{4}{5}[/tex] in its place. The number in place of [tex]b[/tex] represents the y-intercept, so substitute 0 in its place. This gives the following answer and equation:
[tex]y =\frac{4}{5} x+0\\y = \frac{4}{5} x[/tex]
Answer:
y=4/5x
Step-by-step explanation:
y=mx+b where m=slope and b=y-intercept
In this problem, the slope is 4/5 because m=rise/run.
PLEASE HELP !! ILL GIVE BRAINLIEST !!
Answers
Answer:
When two lines are crossed by another line (called the Transversal): Alternate Interior Angles are a pair of angles on the inner side of each of those two lines but on opposite sides of the transversal.
I need help with a Delta math Assignment
Gabriella made 5% of her free throws over the season. If she shot 180 free throws, how many did she make?
Answers
Answer:
9
Step-by-step explanation:
How many degrees and in what direction was the figure rotated?
90 degrees counterclockwise
180 degrees
90 degrees clockwise
Answers
Answer: 90 degrees clockwise
Step-by-step explanation:
After multiplying both the numerators and the denominators, it's time to simplify or
reduce your product.
Example: 2/5x3/4 = 6/20.
The greatest common factor of 6 and 20 is 2. We divide the top and bottom by 2, which
simplifies to 3/10.
What is the reduced product of 2/3 x 5/8?
A
10/24
B
5/12
С
1/2
D
10/12
Answers
Answer: The answer is B, 5/12.
hope this helped :)
Answer:
B. 5/12
Step-by-step explanation:
2/3 x 5/8 = 10/24
The greatest common factor of 10 and 24 is 2.
Since the GCF is 2,
We divide the numerator and denominator by 2 and get 5/12.
Therefore, the simplified fraction of 10/24 is 5/12.
Hi please help me out I am one the edge of failing math class and might have to do summer school, but I don't want to talk about that, anyways please help me!
A company has three sales departments (local, regional, and national) at each of several locations across the United States. Each local sales department has 120 employees. The company wants to survey its employees to determine the most effective sales method.
Which sample should the company use to arrive at the most reliable conclusion?
Group of answer choices
24 employees from one sales department at one location
24 employees from one sales department at each location
24 employees from each sales department at one location
24 employees from each sales department at each location
Answers
Step-by-step explanation:
24 employees from each sales department at each location
Answer: D. 24 employees from each sales department at each location
Step-by-step explanation: took the test I got it right
NEED ANSWER ASAP WILL GIVE BRAINLIEST FOR CORRECT ANSWER
Answers
Answer:
y = 8x + 86
Step-by-step explanation:
Answer:
choice 2) y = 8x + 86
Step-by-step explanation:
Plz help me! Well mark brainliest if correct!
Answers
Answer:
diameter you are learning that the circle as a line in the middle goes across and the diameter
pls help me with this asap!!
Answers
Answer: 7 square root 2 AKA the bottom one
Step-by-step explanation:
q is a degree 5 polynomial that passes through the origin, has zeros i and 3 - i, and q( - 2) = - 520. Find
the equation for g.
User for your input. Simplify your answer so that it has only real numbers as coefficients.
Answers
i need help please it's due today
Answers
Answer:
Step-by-step explanation:
A baseball is thrown upwards from an elevation of 64 feet. The ball reaches a
maximum elevation of 100 ft after one-and-a-half seconds and lands on the
ground (elevation of Oftafter four seconds.
A quadratic function models this situation. On the grid below, sketch a graph
of this function.
What is the y-intercept? Label. What does it represent in the context of
the problem?
Baseball Throw
100
90
What is the x-intercept? Label. What does it represent in the context of
the problem?
80
70
60
What is the vertex? Label. What does it represent in the context of the
50
problem?
40
30
What is the Domain of your sketch?(written in proper form)
20
10
What is the Range of your sketch? (written in proper form)
0
0 1 2 3 4
Time (seconds)
Elevation (ft)
Answers
Answer:
Hello, I am having difficulties understanding thsi question, could youplease help me out so I can help you out?
Step-by-step explanation:
Thank you! -Brainly UserWhich value for x makes the sentence true?
10x - 5 = - 55
A. - 50
B. - 6
C. - 10
D. - 5
Answers
Answer:
D) -5
Step-by-step explanation:
10x-5=-55
10x=-55+5
10x=-50
x=-50/10
x=-5
After their hike, Joe and Mike took a taxi back to the trailhead. The taxi cost $26 plus
$0.35 per mile. Which type of function could model the cost of the taxi ride?
A) Linear
B) Can't be determined
C) Exponential
D) Quadratic
Answers
Answer:
Linear
Step-by-step explanation:
[tex]y=.35x+26[/tex]
[tex]y=\frac{7}{20}x+26[/tex] .35 = 7/20
The form [tex]y=mx+b[/tex] represents a linear equation. Our equation fits that form, with [tex]m=\frac{7}{20}, b=26[/tex].
Answer:
Linear
Step-by-step explanation:
Can you give me proably a little step by step to the answer so I can understand it a bit more?
Answers
Answer:
120 square inches.
Step-by-step explanation:
This is a regular octagon. (It has 8 equal sides). You have enough information to find the area of 1 triangle.label the bottom line as 5.Draw two lines from the center to each end of the bottom 5 inch line.That gives you 1 triangle. Find the area of that 1 triangle.Area = 1/2 b * hb = 5h = 6Area = 1/2 * 5 * 6Area = 15.Now here's the actual answer.You have 8 such triangles. The area of the octagon is 8 * 15 = 120 square inches.The map shows the distance in air miles from City A to both City B and City C.
City B
49 miles
N
City A 66 miles City C
Which of the following could be the distance between City B and City C in air miles?
O 114 miles
O 116 miles
O 118 miles
120 miles
Answers
The length of a bridge is 130m. The length of each of roberts paces is 70cm what is the minimum number of the full paces that it would take Robert to walk the full length of the bridge
Answers
Consider the line y=7x+4.
Find the equation of the line that is parallel to this line and passes through the point ( -3, 5)
Find the equation of the line that is perpendicular to this line and passes through the point ( -3, 5)
Answers
Answer:
parallel y=7x+26
perpendicular y=1/7x+32/7
Step-by-step explanation:
parallel line have the same slope
y-5=7(x-(-3))
y-5=7(x+3)
y-5=7x+21
y=7x+21+5
y=7x+26
perpendicular slope is the opposite of the original slope of 7
y-5=-1/7(x-(-3))
y-5=-1/7(x+3)
y-5=-1/7x-3/7
y=-1/7x-3/7+5
y=-1/7x+32/7
HELPP BRAINLIEST!!!!!
Answers
Answer:
--you would decompose it into a rectangle and triangle along the dotted line then add the two areas together to get the total area. the area of the trapezoid is 59.375 ft²
--i havent seen the other problem so i cant answer the convince me part, but you should be able to say how its different from the answer above^^^
Step-by-step explanation:
hope this helps :)
please someone help me with this ASAP especially with the workout!!
Answers
Answer:
71 degrees
Step-by-step explanation:
please someone help me with this ASAP especially with the workout!!
From the triangle shown;
YX² = YZ² + XZ² - 2(YZ)(XZ) cos Z
28² = 25² + 23² - 2(25)(23) cos Z
784 = 625 + 529- 1150 cos Z
784 - 1154 = -1150cos Z
-370 = -1150cos Z
cos Z = 370/1150
cos Z = 37/115
cos Z = 0.3217
Z = arccos 0.3217
Z = 71.23
hence the measure of <Z is 71 degrees
help pls pls pls シ
And thanks!
Answers
Answer:
the answer the 10.25 u move both decimals over and move it up to the top and divide like normal
Can someone help me please? I forgot how to do this
Answers
Answer:
90°-33°=57°
57=2x+1
-1. -1
56=2x divide both sides by 2
28=x
x =28
Answer:
x = 28
Step-by-step explanation:
Both of these would add up to 90 degrees.
Equation → 2x + 1 + 33 = 90
Add like terms → 2x + 34 = 90
Subtract both sides by 34 → 2x + 34 - 34 = 90 - 34
Divide both sides by 2 → 2x = 56
→ x = 28
hope this helps! :)
There are 3 students in the class and 27 apples. If the apples are shared equally by all of the students. How many apples will each student get? Please write your answers in complete sentences.
Answers
Answer:
9(Nine)
Step-by-step explanation:
9 × 3 = 27
so Each student will get 9 apple's
In 2003, approximately 0.38% of the U.S. population had HIV/AIDS. Of these, it was estimated that 24.8% were not aware they have the disease. What is the probability that a randomly selected 82 Chapter 3 Conditional Probability and Independence person who does not know whether or not he or she has the disease will actually have it
Answers
Answer:
oklhhhf78 yr f brainpop
How many half-cubes are needed to fill in the gap of the box shown? O 4 half-cubes O 8 half-cubes O 12 half-cubes O 16 half-cubes 2 units 4 units 23 units
Answers
Answer:
8 half cubes
Step-by-step explanation:
8 half cubes
Answer:
b! 8 half-cubes!
Step-by-step explanation:
Just answer the top answer please and thank you
Answers
Answer:
C. 75
Step-by-step explanation:
Select all the numbers that round to 0.1 when rounded to the nearest tenth ?
Answers
#1: Consider the list of golf scores: 71, 68, 72, 79, 80, 77, 84, 70, 92. What is
the mode of this data set? *
80
75
0
none
Answers
Answer:none
Step-by-step explanation:
is 3m, 4m, 5m a right triangle YES OR NO
Is 14m, 48m, 50m a right triangle YES OR NO
HURRY
Answers
Answer:
I thing they both are........