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Anvisha [2.4K]
3 years ago
10

WILL MARK BRAINLIEST IF YOU ARE CORRECT!

Mathematics
2 answers:
almond37 [142]3 years ago
4 0
Mmmmmmmmmmmmmmmmmhvggggghjk
alina1380 [7]3 years ago
3 0
<h3>Answer: Choice C</h3>

There is sufficient evidence to support the claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds

=================================================

Explanation:

First focus on "You find the initial conclusion of your test fails to reject the null hypothesis"

The key thing to pull out from that is "fail to reject the null hypothesis". Failing to reject means we basically "accept", more or less, the null. We have no other choice until more data comes along to reject the null.

The claim is " the standard deviation of time all women spend washing their hair in the morning is 15 seconds." which is where the null hypothesis is made. In terms of symbols, we would write \sigma = 15. The alternate hypothesis is \sigma \ne 15. The symbol \sigma is the greek letter sigma that represents the population standard deviation.

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Question from Amanda, a parent:

what is the area of a circle with a circumference of 3000 metres?


Amanda,

The area of a circle is given by the formula A = π r2, where A is the area and r is the radius. The circumference of a circle is C = 2 π r.

If we "solve for r" in the second equation, we have r = C / (2 π ). Now we use this to replace r in the first equation: A = π [ C / (2 π ) ]2.

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timofeeve [1]

<u><em>1</em><em>s</em><em>t</em><em> </em><em>photo....</em></u>

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<em>Explanation</em>

All when divided becomes 1/3 , so it is proportional...

<em>Pls </em><em>mark</em><em> </em><em>brainliest</em>

<u><em>2</em><em>n</em><em>d</em><em> </em><em>photo</em><em>.</em><em>.</em><em>.</em><em>.</em></u>

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<em>Explai</em><em>n</em><em>ation</em>

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If you graph it... and they intersect there is a sloution.

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x=-1.5

3 0
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