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
fredd [130]
2 years ago
10

Una muestra aleatoria si 136 personas de 400 a quien se le aplica un nuevo medicamento experimentaron mejoría Desarrolla un inte

rvalo de confianza del 95% para la verdadera proporción que experimentara alguna mejoría con la medicina
Mathematics
1 answer:
Rudiy272 years ago
3 0

Answer:

Intervalo de confianza

= (0.294, 0.386)

Step-by-step explanation:

La fórmula para el intervalo de confianza para la proporción se da como

p ± z × √p (1 - p) / n

Donde p = x / n

De donde de la pregunta anterior

x = 136 personas

n = 400 personas

p = 136/400

p = 0.34

z = puntuación z del intervalo de confianza del 95% = 1.96

Por lo tanto,

Intervalo de confianza =

0.34 ± 1.96 × √0.34 (1 - 0.34) / 400

= 0.34 ± 1.96 × √0.34 × 0.66/400

= 0.34 ± 1.96 × √0.000561

= 0.34 ± 1.96 × 0.0236854386

= 0.34 ± 0.0464234596

Intervalo de confianza

= 0.34 - 0.0464234596

= 0.2935765404

= 0.34 + 0.0464234596

= 0.3864234596

Hence:Intervalo de confianza

= (0.294, 0.386)

You might be interested in
Which of the following is(are) the solution(s) to 16x-51- 7?
nexus9112 [7]
X= -2 because I love school soooo much
5 0
2 years ago
Read 2 more answers
12p &lt; 96<br> A. p &lt; 8<br> B. p &lt; 108<br> C. p &lt; 84<br> D. p &gt; –8
inessss [21]

Solution:

<u>Note that:</u>

  • Given inequality: 12p < 96

<u>Dividing both sides by 12:</u>

  • 12p < 96
  • => 12p/12 < 96/12
  • => p < 8

Correct option is A.

<u />

3 0
2 years ago
Read 2 more answers
Which is another way to check the sum of 104+34+228+877?
Alex787 [66]
The answer is digit sum method.

Digit sum method is method used to check the sum of sum numbers. If the sum of all of the digits of numbers is equal to the sum of all of the digits of the total sum, then the arithmetic process was correct.

We need to check the sum of <span>104+34+228+877:
</span>104 + 34 + 228 + 877 = 1243

Let's first summarize the digits of individual numbers:
104 *** 1 + 0 + 4 = 5
34 *** 3 + 4 = 7
228 *** 2 + 2 + 8 = 12 *** 1 + 2 = 3
877 *** 8 + 7 + 7 = 22 *** 2 + 2 = 4

Now, let's sum these sums:
5 + 7 + 3 + 4 = 19 *** 1 + 9 = 10 *** 1 + 0 = <u><em>1</em></u>

Then, let's summarize the digits of the total sum:
1243 *** 1 + 2 + 4 + 3 = 10 *** 1 + 0 = <u><em>1</em></u>

Since the sums of the digits on the both sides of equation is 1, than the arithmetic process was correct and the sum of <span>104 + 34 + 228 + 877 is really 1243.</span>

7 0
3 years ago
Help please help help help
Artyom0805 [142]

Answer:

d

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
In AABC, m A= 60°, m_C = 30°, and AB = 6 inches. What is the length of side BC?
nlexa [21]

Answer:

answer is (C)

Step-by-step explanation:

this is a right angle triangle

so tan 60 degree = bc/6

√3. = bc/6

√3×6= bc

10.39 inches

8 0
2 years ago
Other questions:
  • How do you write 0.05 times 10=0.5 as division
    10·1 answer
  • Let f(x) = x^2 + 6x.
    5·1 answer
  • Diane and Fran live in Warren, which is 108.7 miles away from the mall. If the average mileage of the car is 25.6 mpg, what is t
    14·1 answer
  • 1 1/4 x 23 can you help me solve this
    12·2 answers
  • Divide 6⁄13 by 6⁄12 .
    11·2 answers
  • The average show stays on Broadway for 2.4 years with a standard deviation of 1.5. What is the z-score of a show that runs for 2
    12·1 answer
  • Well is their an answer? I thought it was 35% but that’s not an option
    10·1 answer
  • Solve the equation P=k x t / V for the letter k
    14·1 answer
  • Duane’s scores on the first three math tests this quarter are 82, 74, and 96. Which is the lowest score he could get on the four
    5·1 answer
  • The linear functions f(x) and g(x) are represented on the graph, where g(x) is a transformation of f(x):
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!