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
ra1l [238]
3 years ago
5

A study of six hundred adults found that the number of hours they spend on social networking sites each week is normally distrib

uted with a mean of 17 hours. the population standard deviation is 6 hours. what is the margin of error for a 95% confidence interval? 0.134 0.220 0.313 0.480
Mathematics
2 answers:
MissTica3 years ago
8 0

Answer:

0.48

Step-by-step explanation:

Given : Mean = 17 hours

            Standard deviation = 6 hours

            n = population size =600

To Find: what is the margin of error for a 95% confidence interval?

Solution:

n= 600

\sigma = 6

z = 1.96 for a 95 % confidence interval;

Margin of error formula:

ME=\frac{z \times \sigma}{\sqrt{n}}

Substitute the values

ME=\frac{1.96 \times 6}{\sqrt{600}}

ME=0.48

Hence the margin of error for a 95% confidence interval is 0.48

babymother [125]3 years ago
4 0
The answer is C. 0.313
You might be interested in
Samantha is studying the population growth of an endangered birth. The growth can be modeled by the equation B(t) 100 + 3/5t^5 ,
solong [7]

The value of the population of the growth of an endangered birth after 5 years is 1975

<h3>How to determine the population after 5 years?</h3>

The population function is given as:

B(t) = 100 + 3/5t^5

At 5 years, the value of t is 5

So, we have

t = 5

Next, we substitute 5 for t in the equation B(t) = 100 + 3/5t^5

This gives

B(5) = 100 + 3/5 * 5^5

Evaluate the exponent

B(5) = 100 + 3/5 * 3125

Evaluate the product

B(5) = 100 + 1875

Evaluate the sum

B(5) = 1975

Hence, the value of the population of the growth of an endangered birth after 5 years is 1975

Read more about exponential functions at:

brainly.com/question/2456547

#SPJ1

4 0
1 year ago
What is 0.00179 in scientific notation
kirill [66]

Answer:

The answer is 1.79 × 10-3

6 0
3 years ago
The equation a = 640s gives the relationship between s square miles and a acres. Pam owns 7.5 square miles of farmland. How many
stich3 [128]
Quantity of farmland owned by Pam = 7.5 square miles.
The other important information given in the question is the equation relating square miles and acres. Using that information, the answer to the question can be easily reached.
a = 640s
   = 640 * 7.5 acres
   = 4800 acres.
From the above deduction, we can conclude that the correct option among all the options that are given in the question is the third option or option "C".
5 0
3 years ago
Read 2 more answers
The graph of y=-3x+ 2 is:
Alexeev081 [22]

Answer:

A

Step-by-step explanation:

This is a linear function whose slope is -3 and whose y-intercept is (0, 2).  Answer A is correct.

5 0
3 years ago
Please help me!!!<br><br><br> What reason belongs to step 10?
castortr0y [4]

SAS

you see RT = RT

angle TRU = angle RTU

RU = TV

4 0
2 years ago
Other questions:
  • Simplify a•a²•a³ of the following
    10·1 answer
  • Convert the improper fraction to a mixed number.
    10·1 answer
  • Ping's Ice Cream Palace offers a special sundae that contains over 2kilograms of ice cream plus any number of toppings.
    10·1 answer
  • Help me with this math plz
    13·2 answers
  • Erin purchased cans of soda
    12·1 answer
  • Simplify:<br> n+(n+1)+(n+2)+...+[n+(n-1)]+...+(n+2)+(n+1)+n
    7·2 answers
  • At school, the maximum number of students that can be in a classroom is 25. If there are 20 students signed up for the chemistry
    13·2 answers
  • Line /1 and line /2 are parallel line
    8·1 answer
  • Gabe works at a coffee shop he earns $40.50 in 3 hours how much does Gabe earn per hour
    13·2 answers
  • The exponential model A=302.5e^0.0211 describes the​ population, A, of a country in​ millions, t years after 2003. Use the model
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!