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Wewaii [24]
3 years ago
9

Simple Math!! 2581 ÷ 21

Mathematics
2 answers:
lilavasa [31]3 years ago
6 0

Answer:

122\frac{19}{21} or 122.904

Step-by-step explanation:

kakasveta [241]3 years ago
5 0

2581 ÷ 21 = 122.9

Use a calculator

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Vitamin D, whether ingested as a dietary supplement or produced naturally when sunlight falls on the skin, is essential for stro
tigry1 [53]

Answer:

a) The 98% confidence interval would be given (0.182;0.218).

b) We are 98% confident that the true proportion of of England people who are deficient in Vitamin D is between 0.182 and 0.218.

c) If repeated samples were taken and the 98% confidence interval computed for each sample, 98% of the intervals would contain the population proportion.

d) Yes since the confidence interval not contains the value 0.25, we can refute the claim at 2% of significance.

Step-by-step explanation:

Data given and notation  

n=2700 represent the random sample taken    

X represent the people in England who are deficient in Vitamin D

\hat p=0.2 estimated proportion of England people who are deficient in Vitamin D

\alpha=0.02 represent the significance level

Confidence =0.98 or 98%

z would represent the statistic (variable of interest)    

p= population proportion of England people who are deficient in Vitamin D

Part a

The confidence interval would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 98% confidence interval the value of \alpha=1-0.98=0.02 and \alpha/2=0.01, with that value we can find the quantile required for the interval in the normal standard distribution.

z_{\alpha/2}=2.33

And replacing into the confidence interval formula we got:

0.20 - 2.33 \sqrt{\frac{0.2(1-0.2)}{2700}}=0.182

0.20 + 2.33 \sqrt{\frac{0.2(1-0.2)}{2700}}=0.218

And the 98% confidence interval would be given (0.182;0.218).

Part b

We are 98% confident that the true proportion of of England people who are deficient in Vitamin D is between 0.182 and 0.218.

Part c

If repeated samples were taken and the 98% confidence interval computed for each sample, 98% of the intervals would contain the population proportion.

Part d

Yes since the confidence interval not contains the value 0.25, we can refute the claim at 2% of significance.

3 0
3 years ago
What is the value of p in the linear equation 24p + 12 – 18p = 10 + 2p – 6?
MrMuchimi

The correct answer is -2 I just took the test.

6 0
3 years ago
I need help on this​
sdas [7]

Answer:

no

Step-by-step explanation:

yes

8 0
3 years ago
The floor of Cara's living room is 10 feet by 14 feet. What is the area, in square feet, of the largest circular rug that can fi
Rus_ich [418]

Answer:

78.5\ ft^{2}

Step-by-step explanation:

we know that

If the floor of Cara's living room is 10 feet by 14 feet

then

the diameter of the larger circular rug that can fit in Cara's living room is equal to 10 feet

<em>Find the area of the circular rug</em>

The area of the circle is equal to

A=\pi r^{2}

we have

r=10/2=5\ ft ----> the radius is half the diameter

\pi=3.14

substitute the values

A=(3.14)(5)^{2}=78.5\ ft^{2}

3 0
3 years ago
5. What is M<br> (3x - 24)<br> (42+11)
Lelechka [254]

Answer:

(3x - 24)

(42+11)

Step-by-step explanation:

(3x - 24)

(42+11)

4 0
3 years ago
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