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AlexFokin [52]
3 years ago
14

Find the value of the test statistic z using z = p ^ - p pq n

Mathematics
1 answer:
ra1l [238]3 years ago
8 0

Answer:

The value of the test statistic is z= -14.53

Step-by-step explanation:

Pcap= 0.3 ,p=0.5 ,q= 1-0.5= 0.5, n=1320

Z= (pcap- p) / √(p×q)/n

Z=( 0.3- 0.5) / √ (0.5 × 0.5)/1320

Z= -0.2/(√0.0001894)

Z= -14.53

See attached picture

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Add. Simplify (or reduce) your answer, if necessary 1/4 +2/7+1/2=
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Hey there! :)

Answer:

29/28.

Step-by-step explanation:

Starting with:

\frac{1}{4} + \frac{2}{7} + \frac{1}{2} =

Begin by finding a common denominator. A number that contains all of the denominators as a factor would be 28. Change each fraction to contain a denominator of 28:

\frac{7}{28} + \frac{8}{28} + \frac{14}{28} =

Add the fractions:

\frac{7}{28} + \frac{8}{28} + \frac{14}{28} = \frac{29}{28}

Therefore, the fractions sum up to 29/28.

3 0
3 years ago
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They are essentially asking us to solve:

357=900e^{-0.01155x} \implies\\ \frac{357}{900}=e^{-0.01155x} \implies\\ \ln{\frac{357}{900}}=-0.01155x \implies \\ x\approx 80.1

Solving this equation for x tells us that it will take around 80.1 years for the materials in the vault to reduce to 357 pounds.

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3 years ago
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chantal volunteered to bring 1 gallon of freshly squeezed orange juice to a picnic.the local grocery store sells 4-pound bags of
pochemuha
(128 oz) * (2 oranges)/(5 oz) * (1 bag)/(11.5 oranges) * $3.49/bag ≈ $15.54

Note that we have assumed 11.5 oranges per bag, and that partial bags are available.

If Chantal must buy whole bags of oranges, 5 bags will be needed and the cost will be $17.45.
6 0
3 years ago
You deposit $3000 into a money-market savings account which pays 4.8% compounded quarterly, and you make no withdrawals from or
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Answer:

$5265.71

Step-by-step explanation:

We have been given that you deposit $3000 into a money-market savings account which pays 4.8% compounded quarterly.

We will use future value formula to solve our given problem.

FV=C_0\times (1+r)^n, where,

C_0=\text{Initial amount},

r = Rate of return in decimal form,

n = Number of periods.

4.8\%=\frac{4.8}{100}=0.048

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FV=\$3,000\times (1+0.048)^{12}

FV=\$3,000\times (1.048)^{12}

FV=\$3,000\times 1.7552354909370114

FV=\$5265.7064\approx \$5265.71

Therefore, there will be $5265.71 in your account at the end of those 3 years.

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3 years ago
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PSYCHO15rus [73]

Answer:

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