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4 years ago

Please answer fast please

Mathematics

1 answer:

kvv77 [185]4 years ago

4 0

Answer:

you can use a website called calculator soup the answer is -9/14 please mark me branlist

Step-by-step explanation:

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At 95% confidence, how large a sample should be taken to obtain a margin of error of 0.05 for the estimation of a population pro

VashaNatasha [74]

Answer:

The sample size 'n' = 384

Step-by-step explanation:

Step(i):-

Given data the margin of error = 0.05

The margin of error of the estimation of a population proportion is determined by

$M.E = \frac{Z_{\frac{\alpha }{2} }\sqrt{p(1-p} }{\sqrt{n} }$

Step(ii):-

In data not given sample proportion 'p' but

we know that $\sqrt{p(1-p} \leq \frac{1}{2}$

$0.05 = \frac{1.96 X \frac{1}{2} }{\sqrt{n} }$

cross multiplication, we get

0.05 ×√n = 0.98

$\sqrt{n} = \frac{0.98}{0.05} = 19.6$

squaring on both sides, we get

n = 384.16≅ 384

Final answer:-

The sample size 'n' = 384

7 0

4 years ago

Using the given right triangle, which ratio is correct?

Tom [10]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

HELP PLEASE!!!! 4 1/3 ÷ 3 9/10

iragen [17]

Answer:

It would be 10/9 or in mixed fractions

1 1/9

Step-by-step explanation:

Since it is a mixed fraction it would be,

13/3 = 13 x 10 = 10

39/10 3 39 9

3 0

3 years ago

What is the answer for a+b-c?

butalik [34]

Lol

Hehe
Lollvebnzkzzk have ever

Yep

7 0

3 years ago

If 8 is an x intercept what is f(8)

jekas [21]

Answer:

f(8) = 0

Step-by-step explanation:

The definition of an x intercept is a point where the function is equal to zero.

8 0

3 years ago