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krok68 [10]
3 years ago
10

Ginger Yiu has a principal of $900 in her savings account with a 6% APR. The simple interest is calculated quarterly. What is th

e amount in the account at the end of the third quarter?
A. $945.22
B. $987.33
C. $935.67
D. $940.50
Mathematics
1 answer:
Bezzdna [24]3 years ago
3 0
A=p (1+rt)
A future value ?
p Principle 900
R interest rate 0.06
T time 9/12

A=900×(1+0.06×(9÷12))
A=940.5
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What is the relationship between the 6s in 6,600 value of the given digits?
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The relationship between the 6s in 6,600 value of the given digits

We write the numbers in place value chart

Thousand     Hundreds          Tens      Ones

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first 6 is in thousands place

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5 0
3 years ago
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allochka39001 [22]

Answer:

She will make $596 more next month

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8 0
2 years ago
A company manufacturing computer chips finds that 8% of all chips manufactured are defective. In an effort to decrease the perce
neonofarm [45]

Answer:

The correct value of the Z-statistic is z = -1.56

Step-by-step explanation:

A company manufacturing computer chips finds that 8% of all chips manufactured are defective.

This means that the null hypothesis is:

H_{0}: p = 0.08

A hypothesis test is performed to determine if the additional training was effective in lowering the defect rate.

This means that the alternate hypothesis is:

H_{a}: p < 0.08

z-statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

0.08 is tested at the null hypothesis:

This means that \mu = 0.08, \sigma = \sqrt{0.08*0.92}

After training was implemented, a sample of 450 chips revealed only 27 defects.

This means that n = 450, X = \frac{27}{450} = 0.06

The correct value of the Z-statistic is

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.06 - 0.08}{\frac{\sqrt{0.08*0.92}}{\sqrt{450}}}

z = -1.56

5 0
2 years ago
This is an easy question that I just read, shouldn't be too hard onece you write it down, it only requires about 7 steps (2 are
sergij07 [2.7K]
I hope this helps you

8 0
2 years ago
Read 2 more answers
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