3 years ago

Someone please help me

Mathematics

1 answer:

Inessa [10]3 years ago

8 0

The answer to the question is B you do not have to sign if you use a pin

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(4,-3)

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3 years ago

A medical researcher says that less than 87â€‹% of adults in a certain country think that healthy children should be required to

Lyrx [107]

Answer: It is not enough evidence to support the researcher's claim.

Step-by-step explanation:

Since we have given that

n = 500

$\hat{p}=0.85$

So, the hypothesis are as follows:

$H_0:\hat{p}$

So, the z value would be

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\z=\dfrac{0.85-0.87}{\sqrt{\dfrac{0.87\times 0.13}{500}}}\\\\z=\dfrac{-0.02}{0.015}\\\\z=-1.33$

At α = 0.05

z= -1.64

So, 1.64<-1.33

So, we accept the null hypothesis.

Hence, it is not enough evidence to support the researcher's claim.

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3 years ago

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BigorU [14]

Answer:

Step-by-step explanation:

5,12,13 is a right triangle

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hope this helps

plzz mark me brainliest

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3 years ago

Which number is greater 0.45 0r 0.449

kati45 [8]

0.45 I PROmise !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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