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kotykmax [81]
2 years ago
15

Graph help. how to do the second part of question c

Mathematics
1 answer:
notka56 [123]2 years ago
8 0

Answer:

I cannot see it well

Step-by-step explanation:

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University dean is interested in determining the proportion of students who receive some sort offinancial aid. rather than exami
vladimir2022 [97]
The confidence interval is
0.59\pm0.081

We first find p, our sample proportion.  118/200 = 0.59.

Next we find the z-score associated with this level of confidence:
Convert 98% to a decimal: 98% = 98/100 = 0.98
Subtract from 1:  1-0.98 = 0.02
Divide by 2:  0.02/2 = 0.01
Subtract from 1:  1-0.01 = 0.99

Using a z-table (http://www.z-table.com) we see that this value is associated with a z-score of 2.33.

The margin of error (ME) is given by
ME=z\sqrt{\frac{p(1-p)}{n}}&#10;\\&#10;\\=2.33\sqrt{\frac{0.59(1-0.59)}{200}}=2.33\sqrt{\frac{0.2419}{200}}\approx0.081

This gives us the confidence interval 
0.59\pm0.081
8 0
3 years ago
Which are solutions to the following equation? x^2=21
creativ13 [48]

Answer:

x

=

±

√

21

Explanation:

To find

x

2

you have to find the square root of

21  x = ± √ 21 ≈ ± 4.5286

Step-by-step explanation:

4 0
3 years ago
Michael ran 3 miles in 24 minutes. What is his average running speed in miles per hour?
givi [52]

Answer:

7.5 miles / hour

Step-by-step explanation:

See the step-by-step solution in the picture attached below.

I hope this answer will help you. Have a nice day !

7 0
3 years ago
Read 2 more answers
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