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
Zarrin [17]
3 years ago
9

A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 678 babies were​ born, a

nd 339 of them were girls. Use the sample data to construct a ​99% confidence interval estimate of the percentage of girls born. Based on the​ result, does the method appear to be​ effective?
Mathematics
1 answer:
suter [353]3 years ago
7 0

Answer:

We are 99% confident that the true proportion of female babies is captured by the interval from

0.8001

to

0.8999

.

Step-by-step explanation:

You might be interested in
Write an equation in point-slope form of the line through point p(9, -1) with slope -5.
jolli1 [7]
Sent a picture of the solution to the problem (s).

8 0
4 years ago
Calculate the future value in five years of $8,000 received today if your investments pay future value a. 5 percent compounded a
zhannawk [14.2K]

The Future value is:

a) $10,210.25

b) $11,220.41

c) $12,308.99

d) $18,938.90

e) $44,835.28

What is future value?

The future value (FV) of any asset can be understood as an increase in its value at a fixed rate over a period of time. For a given principal sum P, rate of interest r, and time period t, the future value of an asset can be calculated as:

FV=P*(1+r) ^t

We can find future value as shown below:

P=$8,000

t=5 year

a) r=6%=0.06

FV=8000*(1+0.05) ^5

=8000*(1.0) ^5

=$10,210.25

b) r=7%=0.07

FV=8000*(1+0.07) ^5

=8000*(1.07) ^5

=$11,220.41

c) r=9%=0.09

FV=8000*(1+0.09) ^5

=$12,308.99

d) r=9% compounded semiannually

= 0.09

t=2*5=10

FV=8000*(1+0.09) ^10

=8000*(1.09) ^10

=$18,938.90

e) r=9 percent compounded quarterly

=0.09

t=5*4=20

FV=8000*(1+0.09) ^20

=8000*(1.09) ^20

=$44,835.28

Learn more about Future value here:

brainly.com/question/7463006

#SPJ2

3 0
2 years ago
How to estimate the square root of a number that is not a perfect square? Give an example and explain how to find it step by ste
tangare [24]

Answer:

See below

Step-by-step explanation:

  • <em>There is a formula for estimating square root of non-perfect square numbers</em>
  • <em>√(A²±B) = A ± B/2A</em>
  • <em>where A² is the nearest perfect square, B is the difference between the original number and the perfect square</em>

<u>Examples</u>

  • 1) √75 = √(8²+11) = 8 + 11/(2*8) = 8 + 11/16 = 8.6875
  • 2) √114 = √(11² - 7) = 11 - 7/(2*11) = 10.6818
6 0
3 years ago
Find the measure of arc DB.<br> 25°<br> 96°<br> 118°<br> 146°
Oksanka [162]

Answer: 146°

Step-by-step explanation:

6 0
2 years ago
A car drove for 50 seconds in that time it traveled 100 meters. What’s the speed of the car?
Marrrta [24]

Answer:

2m/s

2 meters per second

Step-by-step explanation:

Formula for speed is distance (meters) over time (seconds) after you divide you get 2. Please give me the brainliest answer?

:) Hoped this helped!!! Have a good day!!! <3

8 0
4 years ago
Read 2 more answers
Other questions:
  • An in ground rectangular pool has a concrete pathway surrounding the pool. if the pool is 16 feet by 32 feet and the entire area
    15·1 answer
  • Which inequality describes this graph?
    8·1 answer
  • Please help me with this questions I need the answer
    12·2 answers
  • Please help me with the question 15 POINTS
    11·1 answer
  • Can you help? I need this solved ASAP, it's for a realize situation scenario,​
    6·1 answer
  • Write the expression in simplest form.<br> (-11/2 x + 3) -2(-11/4x-5/2)
    13·1 answer
  • Find f(2) if f(x)=|x+1| ^2<br> 9<br> 6<br> 5
    13·1 answer
  • What is the perimeter, in centimeters, of the triangle?
    8·1 answer
  • Multiplication scale
    10·1 answer
  • Which transformation would take figure a to figure b​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!