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k0ka [10]
3 years ago
10

Population Proportion: unknown Sample Proportion: ˆ p = 0.86 Sample size: n = 169 1. Based on the sample, give a point estimate

of the population proportion. 2. Based on the sample, give an interval estimate of the population proportion with 80% confidence. "With 80% confidence, the population proportion is between and " (Do not round the intermediate calculations. Only round the final answer to 3 decimal places
Mathematics
1 answer:
BartSMP [9]3 years ago
3 0

Answer:

Round to nearest 10

Step-by-step explanation:

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The volume is 800pi cubic feet

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If the diameter of a circle changes from 5 cm to 15 cm, how will the circumference change? A) multiplies by 1 3 B) multiplies by
andreyandreev [35.5K]
The length of a circumference: l=πD
l₁=π×5=5π
l₂=π×15=15π
Then l₂÷l₁=15π÷5π=3 and the answer is B)
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3 years ago
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An x-ray machine for animals cost $125,000. if the loan is for 10 years, and the interest paid is $65,625, what's the interest r
solong [7]
The answer is 59,375 there hope this helps
3 0
4 years ago
Determine whether the point (2, 2) is a solution to the system of equations. Explain your reasoning in complete sentences. Prove
goblinko [34]

Answer:

(0,2) is the solution of the given functions.

Step-by-step explanation:

We have been given two functions  f(x)=|x-1|+1  and g(x)=3x+2

To find the solution of the two functions mathematically, we will equate the given functions:

3x+2=|x-1|+1

3x+1=|x-1|

When we will open the modulus function we will have two values +, -

In positive case:

3x+1 =x-1

2x=-2

x=-1

Now, substitute x=-1 in g(x)=3x+2 we get

g(-1)=3(-1)+2=-1

Hence, (-1,-1) is the solution of the given functions.

In negative case:

Now, 3x+1=-(x-1)

3x+1=-x+1

4x=0

x=0

Now, put x=0 in g(x)=3x+2 we get

g(0)=3(0)+2=2

We have another solution: (0,2)

The point (2,2) is not the solution.

And graphically, the solution of two functions is their intersection point which is (0,2)

Hence, (0,2) is the solution of the function.


6 0
3 years ago
Chelsea deposits $600.00 into a bank account and is earning 8.5%simple interest. She decides to keep the account for 4 years. a)
snow_lady [41]

Answer:

$204 in interest

Step-by-step explanation:

Plug in each variable into the simple interest formula: I = PRT

P = $600

R = 8.5% (0.085)

T = 4 years

3 0
3 years ago
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