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Pavlova-9 [17]
3 years ago
9

The number of people that belong to a certain social website is 412 and growing at a rate of 5% every month. How many members wi

ll there be in 9 months?
Enter your answer, rounded to the nearest whole number, in the box.

Mathematics
2 answers:
morpeh [17]3 years ago
4 0

Answer:

Hello fellow k12 students! the answer I got from my test was 639.



vladimir1956 [14]3 years ago
3 0
Population are always modeled by exponential growth equation given by:
f(x)=a(1+b)^t
where:
a=original number
b=rate of growth
t=time
thus
f(x)=412(1.05)^t
the population after 9 months will be:
f(9)=412(1.05)^9=639.15=639 
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The probability of type II error will decrease if the level of significance of a hypothesis test is raised from 0.005 to 0.2.

<h3 /><h3>What is a type II error?</h3>

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The relation between type II error and the significance level(α):

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From this, it is known that when the significance level of the given hypothesis test is raised from 0.005 to 0.2, the probability of type II error will decrease.

Learn more about type II error of a hypothesis test here:

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