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ss7ja [257]
3 years ago
6

Puts $700.00 into an account to use for school expenses. The account earns 4% interest,

Mathematics
2 answers:
vodka [1.7K]3 years ago
6 0

Answer:

  • $926.19

Step-by-step explanation:

<u>Use formula:</u>

  • A = Pe^(rt)

<u>Given</u>

  • P = $700
  • r = 4% = 0.04
  • t = 7 years

<u>Find the amount:</u>

  • A = 700*e^(0.04*7) = 926.19
MrRissso [65]3 years ago
6 0

Answer:

$926.19 is the answer.

Step-by-step explanation:

good luck

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Complete question :

The Harris Poll conducted a survey in which they asked, "How many tattoos do you currently have on your body?" Of the 1205 males surveyed, 181 responded that they had at least one tattoo. Of the 1097 females surveyed, 143 responded that they had at least one tattoo. Construct a 95% confidence interval to judge whether the proportion of males that have at least one tattoo differs significantly from the proportion of females that have at least one tattoo. Interpret the interval.

Answer:

(−0.0085 ; 0.0481)

Step-by-step explanation:

Given that :

n1 = 1205 ; x1 = 181 ; n2 = 1097 ; x2 = 143 ; α = 95%

Zα/2 = 1.96 ( Z table)

Confidence interval : (p1 - p2) ± E

E =Zα/2 * √[(p1q1/n1) + (p2q2/n2)]

p1 = x1 /n1 =181/1205 = 0.1502

q1 = 1 - p1 = 1 -0.1502 = 0.8498

p2 = x2/n2 = 143/1097 = 0.1304

q2 = 1 - p2 = 1 -0.1304 = 0.8696

E = 1.96 * √(0.0001059 + 0.0001033)

E = 0.0283

p1 - p2 = 0.1502 - 0.1304 = 0.0198

Lower boundary = 0.0198 - 0.0283 = −0.0085

Upper boundary = 0.0198 + 0.0283 = 0.0481

(−0.0085 ; 0.0481)

7 0
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Answer:

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Step-by-step explanation:

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