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
valentinak56 [21]
3 years ago
12

A researcher studying public opinion of proposed social security changes obtains a simple random sample of 5050 adult americans

and asks them whether or not they support the proposed changes. to say that the distribution of the sample proportion of adults who respond? yes, is approximately? normal, how many more adult americans does the researcher need to sample in the following? cases? ?(a) 10?% of all adult americans support the changes ?(b) 15?% of all adult americans support the changes
Social Studies
1 answer:
mel-nik [20]3 years ago
8 0
We are given two scenarios
p = 10% = 0.10
and
p = 15% = 0.15

We are also given
n = 50 (it's not 5050 for this problem)
We asked for the additional number of samples of people for the distribution to be accepted as simple and random

We use the formula
np > 10 for random normal distribution

So,
for p = 10%
n (0.10) > 10
n > 100
Therefore, at least 50 more people must be added as samples for the distribution to be simple and random

for p = 15%
n (0.15) > 10
n > 66.67
Therefore, at least 7 more people must be added as samples for the distribution to be simple and random<span />
You might be interested in
How long usa exists?
Marianna [84]

The USA came into existence in 1776.
That was 238 years ago.


3 0
4 years ago
Ramon surveyed his friends about their favorite snacks. He found that 1/6 of his friends prefer trail mix. What is the equivalen
Burka [1]
Always remeber that the fraction bar is just a divison sign. with that being said, you are going to divide the numerator=1 by the denominator=6. this will then give the decimal form 1.6666666. Because it continues repeating it will be Answer B 

i hope this helps:)
5 0
3 years ago
Colonist lit bonfires and rang bells for the Declaration to show they were________.
tekilochka [14]

Answer:

Correct answer is excited.

Explanation:

Declaration of Independence is the most important document in American history. It proclaimed independence of the former colonies from Britain. When it was proclaimed, people were excited and happy because they were finally able to achieve their goal. New nation was born.

5 0
3 years ago
Read 2 more answers
What is a feature of the Crossroads region?
kramer

Answer:

Explanation:

Crossroads:Located in the center of Louisiana, the Crossroads region was once known as "No Man's Land," and wasn't included in the original purchase in 1803. But times have changed and this area is now notorious for its rich culture and beautiful and diverse natural habitat

8 0
3 years ago
• small government
taurus [48]

the answer is D republicans ,most of them support these policies

7 0
3 years ago
Read 2 more answers
Other questions:
  • Label the following settlements
    12·1 answer
  • Ms. rivers has a student, monika, who has difficulty completing her in-class work. although ms. rivers allows plenty of time for
    6·1 answer
  • How did cowboy culture reflect the ethnic diversity of the United States
    11·1 answer
  • Styles that exhibit the principle of fashion that originated from the "bottom up" are
    9·1 answer
  • Older adults who __________ adapt more favorably and feel better about it.
    15·1 answer
  • What are two movies which titles relate to 4th of July?
    11·2 answers
  • Jessica had a car accident while crossing an icy bridge. She now maps out her routes to avoid traveling over bridges. This avoid
    6·1 answer
  • Which area of the world was most directly affected by the decisions made at the Berlin Conference
    5·1 answer
  • Natassia believes that boys learn to be more aggressive than girls primarily because boys are more frequently pressured to defen
    15·2 answers
  • Why do the people of remote area lack health service and facilities?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!