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liubo4ka [24]
2 years ago
12

ima ask againnn. okay. i need help i been working on this for like- 4 hours i dont know chile anyways so. im kinda not- smart- r

ight now and i lost my brain. so a little help please <3

Mathematics
2 answers:
Sonbull [250]2 years ago
6 0
Answer
4. 8
5. 0.9
6.22
7. 0.54
8. 1.31
9. 3.7

hope this helps and have a wonderful day :)
MA_775_DIABLO [31]2 years ago
6 0

Answer:

4. 8.21

5. 0.875

6. 22.02

7. 0.54

8. 1.31

9. 3.7

Step-by-step explanation:

Hope this helps

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Answer:

See explanation below

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When the null hypothesis, H0 is rejected, there is enough evidence to conclude that the mean cost can be reduced from from $220. Therefore the manager's proposed method can be implemented.

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Mark me as brainliest

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