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
Andrej [43]
3 years ago
13

In a​ poll, 1,004 adults in a certain country were asked whether they favor or oppose the use of​ "federal tax dollars to fund m

edical research using stem cells obtained from human​ embryos." Based on the poll​ results, it is estimated that 48​% of adults are in​ favor, with a margin of error of 4 percentage points. Use the given statistic and margin of error to identify the range of values​ (confidence interval) likely to contain the true value of the population parameter.
Mathematics
1 answer:
WARRIOR [948]3 years ago
7 0

Answer:

The range of values likely to contain the true value of the population parameter is between 44% and 52%.

Step-by-step explanation:

Confidence interval concepts:

A confidence interval has two bounds, a lower bound and an upper bound.

These bounds are dependent of the sample mean and of the margin of error.

The lower bound is the sample mean subtracted by the margin of error, while the upper bound is the margin of error added to the sample mean.

The confidence interval is likely to contain the true value of the population parameter.

In this question:

Sample mean: 48%

Margin of error: 4%

48 - 4 = 44%

48 + 4 = 52%

The range of values likely to contain the true value of the population parameter is between 44% and 52%.

You might be interested in
If f(x)=5x-3 and f(x)=7, what is the value of x?
Rama09 [41]

5x - 3 = 7

<em><u>Add 3 to both sides.</u></em>

5x = 10

<em><u>Divide both sides by 5.</u></em>

x = 2

The value of x is 2.

3 0
3 years ago
How much more will $22,000 earn in interest than $14,000 if both are invested in savings accounts with APYS of 5.4% for a year?
xxMikexx [17]
Total = Principal * (1 + rate) ^ year
Total = 22,000 * (1.054)^1 = 23,188.00

Total = 14,000 * (1.054)^1 = 14,756.00

23,188.00 - 22,000 = 1,188.00 interest
14,756.00 - 14,000 = 756.00 interest

So the 22,000 earns (1,188.00 -756.00) = 432.00 more dollars in interest than the 14,000 dollars earns in interest.
 


6 0
3 years ago
What is 66% of $1,678.89 plus 7.5% tax?
schepotkina [342]
50% of 1,678.89 = 839.445
10% = 167.889
5% = 83.9445
1% = 16.7889
.5% = 8.39445
Therefore 66% = 1108.0674
and 7.5% = 125.91675
So the two added together is: 1233.98415
To get the percentages simply do the following
50% = divide by two
10% = divide 50% by five OR divide the original number by 10
5% = divide 10% by two or divide 50% by 10
1% = divide 5% by 5 or divide original by 100
.5% = divide 1% by two
4 0
3 years ago
What is the ratio 4:6​
mrs_skeptik [129]

Answer:

do you mean in simplest form

if so then it is 2:3

if not then 6

Step-by-step explanation:

5 0
3 years ago
A muffin recipe calls for 2/5 tablespoons of vanilla extract for 6 muffins. Arthur is making 18 muffins. How much vanilla extrac
GuDViN [60]
2/5 tablespoons of vanilla extract ... 6 muffins
x tablespoons of vanilla extract = ? ... 18 muffins

If you would like to know how much vanilla extract does he need, you can calculate this using the following steps:

x * 6 = 18 * 2/5
x * 6 = 36/5    /6
x = 36/5 / 6
x = 6/5 = 1 1/5

Result: Arthur will need 1 1/5 tablespoons of vanilla extract for 18 muffins.
7 0
3 years ago
Other questions:
  • Which one is greater 5\16 or 5\8
    15·2 answers
  • What is the length (magnitude) of the vector (7,-2)?
    6·1 answer
  • Randomly selected 110 student cars have ages with a mean of 8 years and a standard deviation of 3.6 years, while randomly select
    9·1 answer
  • bridget,jim and krutika hare some sweets in the ratio 2:3:3 bridge gets 22 sweets how many more sweets does jim get over bridget
    7·1 answer
  • 36:39 what is the simplest form
    15·2 answers
  • -19 as a decimal<br> Please answer ASAP!<br> Thank you!
    6·2 answers
  • One-Step Equations<br> Solve each equation<br> 1) 26=8+v
    9·1 answer
  • 7th grade math help me please..
    15·1 answer
  • HELPP PLEASEE TAKING A TEST!!
    13·2 answers
  • A line passes through the point (8, -7) and has a slope of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!