Answer:
The best point estimate of the population proportion p is 0.0251.
The 99% confidence interval for the proportion of adverse reactions is (0.0191, 0.0311).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
In clinical trials, among 4547 patients treated with the drug, 114 developed the adverse reaction of nausea.
This means that [tex]n = 4547, \pi = \frac{114}{4547} = 0.0251[/tex]
The best point estimate of the population proportion p is 0.0251.
99% confidence level
So [tex]\alpha = 0.01[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.01}{2} = 0.995[/tex], so [tex]Z = 2.575[/tex].
The lower limit of this interval is:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.0251 - 2.575\sqrt{\frac{0.0251*0.9749}{4547}} = 0.0191[/tex]
The upper limit of this interval is:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.0251 + 2.575\sqrt{\frac{0.0251*0.9749}{4547}} = 0.0311[/tex]
The 99% confidence interval for the proportion of adverse reactions is (0.0191, 0.0311).
Please help me if you answer this I will mark as brainliest and plus 25 points thank you
Answer:
alt ext: 1 and 8 and then 2 and 7. same side interior: 4 and 6 and 3 and 5
PLEASE LOOK AT THE PICTURE I REALLY NEED HELP AND ILL APPRECIATE IT IF SOMEONE HELPS ME
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Answer:
B. 315 meters
Step-by-step explanation:
The length of the longer side of the lot on drawing = 6.3 cm
Given a scale of 1cm : 50 m
Let the length of the longer side be represented as x.
Therefore, the actual length of the longer side will be calculated as follows:
1:50 = 6.3:x
1/50 = 6.3/x
Cross multiply
x*1 = 50*6.3
x = 315
Actual length of the longer side of the lot = 315 meters
Could someone help me out please
Answer:
The answer is
GCF=8
56-48=8*(7-6)
The next four digits in the number 0.3435363738394041 are
So the next 4 digits are:
0.42430.34353637383940414243
What single percentage change is equivalent to a 11% decrease followed by a 13% decrease
Answer:
24%
Step-by-step explanation:
x-(11/100)x
89/100x
followed by
89/100x-13/100x
76/100x
so the total decrease is calculated as
x-76/100x
(24/100)x
i.e 24% decrease
Identify A, B, and C
-6x2-5x+3=-8X2-4x
Solve this equation
√x - 7= √x - 7
Answer:
Search on mathaway
Step-by-step explanation:
Simplify the expression: 2 = (a + 5) =
Answer:
a+7
Step-by-step explanation:
Iria made a scaled copy of the following triangle. She used a scale factor greater than 111.
What could be the length of the base of the scaled copy of the triangle?
If 44% of the students in a certain collage are female and there are 2640 female students what is the total number of students in the total students
Answer:Total number of students=6000 students
Step-by-step explanation:
Number of female students =2640
Percentage of female students=44%
But
Percentage of female students x Total number of students =Number of female students
Therefore
Total number of students=Number of female students / Percentage of female students
Total number of students=2640/44% =6000 students
What is the relationship between a and b
A) vertical angles
B)complementary angles
C)supplementary angles
D)Non of the above
Answer:
Vertical Angles
Step-by-step explanation:
Any opposite angles caused by two intersecting lines are vertical angles.
Any two adjacent angles caused by vertical lines or two angles that equal 180° are supplementary angles.
Two angles that make 90° in all are complementary angles.
If my answer is incorrect, pls correct me!
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Find the slope of the line on the graph.
Write your answer as a fraction or a whole
number, not a mixed number or decimal.
Enter the correct answer.
Answer:
y = 3x + 4
Step-by-step explanation:
Remember, you find slope values by finding two points on lines within the slope.
Slope= y2-y1/ x2-x1.
(x,y)
I found (0,4), 1, and (2,2), 2.
The answer is -8/2, simplified, -4/1.
Hope this helped.
Simplify: 8 - | 7 - 9 | x 3
Answer:
8-2[tex]x^{2}[/tex]
Step-by-step explanation:
Answer:
[tex]8 - |7 - 9| {x}^{3} \\ 8 - | - 2| {x}^{3} \\ 8 - 2 {x}^{3} \\ thank \: you[/tex]
Reina scored twice as many goals at her last field hockey game as she did during the first game of the season. If F represents the number of goals Reina scored during the first game, which expression represents the number of goals she scored during the last game?
the answer is b mnnnnb,me. wmr3,mfr3;kmv 2
Question 3 of 25 What is g(x)?
Answer:
" Its graph is v-shaped and opens up.
If the graph is turned upside down (so that it opens down), then g(x) = -|x|."
Step-by-step explanation:
Hope this helped :)
Step-by-step explanation:
This is an absolute value function with negative coefficient.
we have
g(x) = - Ixl
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Which histogram correctly displays the given data?
Answer:
i think the amswer would be B
Answer:
B is the accurate answer.
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anyone know the answer?
Solve for x ,
6(2x-5)=-(x+4)
Answer:
x=2
hope this helped :)
5 What is the median? 69 4 10 6 10 -5 7 E B Submit
Answer:
8
Step-by-step explanation:
10 plus 6 is 16
divide by 2
you get 8
solve for x.
A-4
B-20
C-13
D-5
pls helppp! thank you so much
What’s the answer?????
Answer:
(1,1)
Step-by-step explanation:
Cuál es la fuerza total que ejerce 3 personas empujando una carreta? F1 = 30 N, F2 = 45 N, F3 = 38 N?
Respuesta:
113 N
Explicación paso a paso:
Las fuerzas ejercidas se dan como:
F1 = 30 N
F2 = 45 N
F3 = 38 N
A partir de los valores de las fuerzas ejercidas, podemos observar que todas las fuerzas están en la misma dirección; Dado que la fuerza total ejercida es un sol de las 3 fuerzas:
F1 + F2 + F3
(30N + 45N + 38N) = 113 N
Find the slope of the line that passes through points (4,5) and (3,-4)?
Answer:
slope=9
Step-by-step explanation:
whole equation=y = 9x – 31
hope that helps
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thank you
have a great day/night
If m2 BOE = 130° and m2 COB = 80°, find the measure of the indicated arc in circle o. D С E B mCBE = [ ? 1°
HELP ME NO ANSWER RANDOM STUFF FOR POINT WILL GET REPORTED
Answer: 210
Step-by-step explanation:
Which of the following shows a group of possible angles a triangle could have?
A. 10 degrees, 20 degrees, 190 degrees
B. 30 degrees, 60 degrees, 60 degrees,
C. 60 degrees, 90 degrees, 90 degrees
D. 50 degrees, 60 degrees, 70 degrees
Answer:
D) 50, 60, 70
Step-by-step explanation:
The reason why it's D since a regular triangle equals up to 180 degrees in total and D is the only one that equals 180.
50+60+70= 180 degrees
Hope this helps
Can someone pls help me to solve 15 and 16 and answer 17 I will mark you the brainly pls I will really appreciate
Answer:
15) x = 20
16) y = 45°, z = 30°
17) all 4 corners = 90°, all 4 sides are equal length, diagonals are perpendicular, diagonals bisect the corner angles.
We can't do the extra credit because we do not have a relationship about the side lengths. We just have angle information.
Step-by-step explanation:
15) 2x + 8 = 3x - 12
x = 20
16) 2y = 90°
y = 45°
3z = 90°
z = 30°
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There are 2 1/2 cups of milk left in a carton. Write 2 1/2 as an improper fraction.
Answer:
the answer is 2 1/2
Step-by-step explanation:
I don't know I just do lol
The circumference of a circle is 9.04cm.
Find the length of the diameter.
Give your answer rounded to 2 DP.
The circumference of a circle is 9.04 cm. Find the length of the diameter.
Solution:-Let the radius of a circle be r cm.
We know the formula of circumference of a circle is 2πr.
ATQ ,
2πr = 9.04
2 × [tex] \frac{22}{7} [/tex] × r = 9.04
[tex] \frac{44}{7} [/tex] × r = 9.04
r = [tex] \frac{9.04 \: × \: 7}{44} [/tex]
r = [tex] \frac{63.28}{44} [/tex]
r = 1.438
Now, as we have to find the length of the diameter ,
So, we know, Diameter (d) = 2 × radius (r)
[tex] \therefore [/tex] d = 2r
Hence, d = 2 × 1.438 ( r = 1.438 )
d = 2.876
d = 2.88 ( approx )
The length of the diameter is 2.88 cm. [Answer]Linda buys a package of 12 cartons of tomato soup for $30. If each carton holds
16 ounces of soup, what is the cost per quart?
A $1.25
B $2.50
C $5.00
D $7.50
Answer:
5.00
Step-by-step explanation:
1 quart is 32 ounces if you add 16+16=32
and 30 divided by 12 = 2.5
if one carton is 16 ounces and you add 2 cartons to make a quart which is 2.5+2.5=5.00