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DiKsa [7]
2 years ago
10

investments historically have doubled every 9 years. If you start will a $2,000 investment, how much money would you have after

45 years?
Mathematics
1 answer:
azamat2 years ago
7 0

Answer:

$64,000

Step-by-step explanation:

Friday, 45 / 9 = 5

So the investment will double 5 times

First time

2,000 (starting investment) × 2 = 4000

Second time

4000 × 2 = 8000

Third time

8000 × 2 = 16000

Fourth time

16000 × 2 = 32000

Fifth and final time

32000 × 2 = 64000

$64,000

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You would like to determine if there is a higher incidence of smoking among women than among men in a neighborhood. Let men and
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Answer:

For this case we want to test if there is a higher incidence of smoking among women than among men in a neighborhood (alternative hypothesis). And we define p1 for men and p2 for women, so for this case the best system of hypothesis are:

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Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

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The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".  

Solution to the problem

For this case we want to test if there is a higher incidence of smoking among women than among men in a neighborhood (alternative hypothesis). And we define p1 for men and p2 for women, so for this case the best system of hypothesis are:

Null hypothesis:p_1- p_2 \geq 0

Alternative hypothesis: p_1 -p_2

And the best option would be:

a) h0: p1-p2 ≥ 0 h1: p1-p2 < 0

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