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AVprozaik [17]
2 years ago
14

8

Mathematics
1 answer:
LenaWriter [7]2 years ago
5 0

An experimental study involves the researcher seeking to affect the results on purpose. The given situation is an observational study.

<h3>What are surveys, experiments, and observational studies?</h3>
  • Surveys are one type of observational study since the researchers have no control over the results. Statistical surveys collect data from a sample group in order to learn more about the overall population.
  • The sample population being examined is measured, or surveyed, in observational research. The researcher watches the individuals and measures variables but makes no attempt to influence the population or intervene in the study.
  • In contrast to an observational study, an experimental study involves the researcher seeking to affect the results on purpose. The objective is to find out what influence a certain therapy has on the result.

Since the researcher needs to find if a certain medicine improves the symptoms of the flu, therefore, the objective is to find out what influence a certain therapy has on the result. Hence, the given situation is an observational study.

Learn more about Observational Studies:

brainly.com/question/15938198

#SPJ1

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According to Gallup, 58% of US Adults choose to pursue higher education solely to get a good job. Consider taking samples of 900
katovenus [111]

Answer:

(a) Normal model

(b)\ Mean = 0.58

(c)\ \sigma = 0.0165

Step-by-step explanation:

Given

p = 58\%

n = 900

Solving (a): The distribution type

The sample follows a normal model

Solving (b): The mean

This is calculated as:

Mean = p

So, we have:

Mean = 58\%

Express as decimal

Mean = 0.58

Solving (c): The standard deviation

This is calculated as:

\sigma = \sqrt{\frac{p(1 - p)}{n}}

So, we have:

\sigma = \sqrt{\frac{58\%(1 - 58\%)}{900}}

Express as decimals

\sigma = \sqrt{\frac{0.58(1 - 0.58)}{900}}

\sigma = \sqrt{\frac{0.58 * 0.42}{900}}

\sigma = \sqrt{\frac{0.2436}{900}}

\sigma = \sqrt{0.00027066666}

\sigma = 0.0165

4 0
3 years ago
Choose all sets contAining the number -1.576
alexandr1967 [171]
What sets are you talking about
3 0
3 years ago
Read 2 more answers
-5(y+.2)=25 what is y? PLEASE SOLVE ASAP
Anna35 [415]

-5(y+2)=25

y+2=25 ÷(-5)

y+2= -5

y= -5-2

y=7

8 0
2 years ago
A daily newspaper has a circulation of 6 617 000 copies per day if 1 days papers were distributed evenly amongst 13 cities how m
anygoal [31]

Answer:

apparently, 47461 copis. thats wrong calculations..

Step-by-step explanation:

7 0
3 years ago
1 2 3 4 5 6 7 8 10 Which set of steps will translate f(x) = 67 to g(x) = 67-5-7? Shift f(x) = 6X five units to the left and seve
True [87]

Answer:

Shift f(x) = 6' seven units to the left and five units down.

Step-by-step explanation:

6 0
3 years ago
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