1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BaLLatris [955]
1 year ago
5

The average time it takes a certain brand of ibuprofen to start working is 25 minutes, with a standard deviation of 13 minutes,

distributed normally. A pharmacist randomly samples 20 pills from this brand, because she is researching different brands in order to find the quickest acting ibuprofen to recommend to her customers. Identify the following to help her make her recommendations, rounding to the nearest hundredth if necessary:
Mathematics
1 answer:
Sunny_sXe [5.5K]1 year ago
7 0

The following to help her make her recommendations.

\mu = 25 min

\sigma=  13 min

n= 20.

\mu_{\bar{x}}=\mu = 25 min

<h3>What is standard deviation?</h3>

An indicator of how much a group of numbers vary or are dispersed is the standard deviation. When the standard deviation is low, the values tend to fall within a narrow range of the set's mean, but when it is large, the values tend to deviate from that mean more.

<h3>According to the given information:</h3>

The random variable X should stand in for how long it takes for a specific brand of ibuprofen to start working.

(a)

A certain brand of ibuprofen typically starts acting after 25 minutes.

Which is. \mu = 25 min

(b)

A specific brand of ibuprofen has a 13-minute standard variation for when it begins to work.

Which is. \sigma= 13 min

(c)

A pharmacist has chosen a 20-piece sample.

Which is. n= 20.

(d)

The sample means' mean is:

\mu_{\bar{x}}=\mu = 25 min

To know more about standard variation visit:

brainly.com/question/16964407

#SPJ4

I understand that the question you are looking for is:

The average time it takes a certain brand of ibuprofen to start working is 25 minutes, with a standard deviation of 13 minutes, distributed normally. A pharmacist randomly samples 20 pills from this brand, because she is researching different brands in order to find the quickest acting ibuprofen to recommend to her customers. Identify the following to help her make her recommendations, rounding to the nearest hundredth if necessary:

a. mu = ______ minute

b. sigma = ______ minute

c. n = ______

d. mu-x = _______ minute

You might be interested in
Two angles are supplementary. One angle has a measure that is five less than four times the other. What is the measure of the la
sattari [20]

Answer:

C

Step-by-step explanation:

4x-5+x=180. Add 5 to both sides

5x=185. Divide by 6

X=37

180-37=143

143

4 0
3 years ago
Answer the question below
Alexxx [7]

Answer:

the answer is c sir

pls brainly me

thx and im blessed to

answer this thx you

6 0
2 years ago
I need help with this question plzzz <br><br> Geometry
KATRIN_1 [288]

Answer:

  • If the perimeter of a square measures 32 cm, each side measures 32/4= 8 cm, because all sides are equal.
  • The diagonal that passes through the center of the square divides the square into two triangles. The triangles are formed by a <u>hypotenuse </u>(the diagonal, which is k in this case), <u>and two sides,</u> that measure 8 cm each, in this case.
  • Because of Pythagoras' theorem, we know that the <u>lenght of the hypotenuse</u> (in this case the hypotenuse is k) equals the squared root of the sum of the squared sides, which in this case can be expressed as k=\sqrt{8^2+8^2} =\sqrt{64+64}=\sqrt{128}=11.31.
  • Then, k=11.31 cm.

3 0
3 years ago
A 5 divided by 48 lottery involves choosing 5 of the numbers from 1 through 48 and a 4 divided by 35 lottery involves choosing 4
Anika [276]

Answer:

4/35 lottery is easier to win.

Step-by-step explanation:

For the 5/48 lottery, the winning probability is \frac{5}{48} ≈0.1042

For the 4/35 lottery, the winning probability is \frac{4}{35} ≈ 0.1143

Since \frac{4}{35}  >  \frac{5}{48} , the lottery where one chooses 4 of the numbers 1 through 35 is easier to win.

5 0
3 years ago
Is the following statement true? Explain.
sukhopar [10]

Step-by-step explanation:

We can prove the statement is false by proof of contradiction:

We know that cos0° = 1 and cos90° = 0.

Let A = 0° and B = 90°.

Left-Hand Side:

cos(A + B) = cos(0° + 90°) = cos90° = 0.

Right-Hand Side:

cos(A) + cos(B) = cos(0°) + cos(90°)

= 1 + 0 = 1.

Since LHS =/= RHS, by proof of contradiction,

the statement is false.

4 0
3 years ago
Other questions:
  • Say you want to create a ladder .which lines should be parallel and perpendicular to each?
    8·2 answers
  • Find the measure of the third angle of a triangle given the measure of two angles are 86º and xº.
    7·2 answers
  • Estimate the square root of 82. Round to the nearest hundredth. Show your work!
    15·2 answers
  • What is the sum of 16.87 + (–98.35)? –115.22 –81.48 81.48 115.22
    8·2 answers
  • The sum of all digits in the numbers 44, 45 and 46 is 27 because (4+4)+(4+5)+(4+6)=27. Find the sum of digits in the first 25 co
    11·1 answer
  • 50 over 8 as a reduced fraction
    14·2 answers
  • PLEASE! NEED HELP!!!
    14·2 answers
  • Please help!!!!!!!!!!!!!!
    14·1 answer
  • Please help me!!!!!!
    11·2 answers
  • Answer it pls<br> :3<br> uwu<br> ^^
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!