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AVprozaik [17]
3 years ago
11

A sample of 800 computer chips revealed that 57% of the chips do not fail in the first 1000 hours of their use. The company's pr

omotional literature states that 62% of the chips do not fail in the first 1000 hours of their use. The quality control manager wants to test the claim that the actual percentage that do not fail is different from the stated percentage. Determine the decision rule for rejecting the null hypothesis, H0, at the 0.02 level.
Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
3 0

Answer:yes

Step-by-step explanation:

yes

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Kelly subtracted 2.3 from 20 and got 17.7. explain why this answer is reasonable
Serga [27]
20-2.3=17.7 what don't you understand? 

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3 0
3 years ago
Susan has a rectangular fence around her swimming pool. The fence she built was 15 ft long, 10 ft wide and 6ft tall. How many sq
Dmitriy789 [7]

Answer:

300 Square feet

Step-by-step explanation:

Susan built a rectangular fence around her swimming pool.

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Surface Area of a Cuboid= 2(LW+LH+WH)

However since the top and bottom are open, the Surface Area becomes

Surface Area of the fence= 2(LW+WH)

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Susan uses 300 Square feet to build her fence.

8 0
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Answer:

120 degrees

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