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m_a_m_a [10]
3 years ago
9

3. The parents of a newborn girl want to invest $1000 in some kind of saving plan that their child could

Mathematics
1 answer:
andrew11 [14]3 years ago
5 0

Answer:

A. 1000x75t=i

B. 1000(1+5%/n)^t

Step-by-step explanation:

i=prt     interest principle rate time

a=p(1+r/n)^t amount principle rate number of times interest is compound time

<em>Hope this helps.</em>

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PTC is a substance that has a strong bitter taste for some people and is tasteless for others. The ability to taste PTC is inher
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Answer:

Sample size shouldbe atleast 60

Step-by-step explanation:

Given that PTC is a substance that has a strong bitter taste for some people and is tasteless for others. The ability to taste PTC is inherited and depends on a single gene that codes for a taste receptor on the tongue. Interestingly, though the PTC molecule is not found in nature, the ability to taste it correlates strongly with the ability to taste other naturally occurring bitter substances, many of which are toxins.

Proportion of Italians who taste PTC =0.75

Margin of error <0.11

Confidence level = 95%

Std error of proportion = \sqrt{\frac{0.75*0.25}{n} }

Margin of error = 1.96*\sqrt{\frac{0.75*0.25}{n} }<0.11

\sqrt{n} >1.96*\sqrt{0.75*0.25} /0.11\\=17.81*0.4330\\=7.71\\n>59.47\\

Sample size shouldbe atleast 60

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Answer:

hope this helps

Step-by-step explanation:

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