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Bingel [31]
2 years ago
15

The temperature in the production department is 21°C at 12 noon. If

Mathematics
1 answer:
bezimeni [28]2 years ago
3 0

28.5 (I don't know if this is fully correct)

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A scientist who studies sleep has developed a new technique to help people sleep each night. He
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Considering the situation described, the scientist's null and alternative hypothesis are described by:

Null hypothesis H_0: \mu = 0; Alternative hypothesis H_1: \mu \neq 0.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if there is no difference, that is, the difference of the means represented by \mu is of 0, hence:

H_0: \mu = 0

At the alternative hypothesis, it is tested if there is a difference, hence:

H_1: \mu \neq 0

More can be learned about an hypothesis test at brainly.com/question/26454209

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2 years ago
Find m of ZX<br> in circle P.<br><br> 70<br> 95<br> 155<br> 205
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The answer is C. 155

First find the measure of arc YZ.

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25+85=110

180-110=70.

Next add 70 to 85 since you want to find the measure of ZX.

70+85=155

So measure of ZX is equal to 155 degrees
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Simplify the expression:<br> 4n + 7 +6
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Answer:

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