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umka2103 [35]
3 years ago
12

The mean breaking strength of yarn used in manufacturing drapery material is required to be at least 100 psi. Past experience ha

s indicated that the standard deviation of breaking strength is 3.0 psi. A random sample of 9 specimens is tested, and the average breaking strength is found to be 100.6 psi. (a) Calculate the P-value. Round your answer to 3 decimal places. (b) If α = 0.05, should the fiber be judged acceptable?
Mathematics
1 answer:
Rudiy273 years ago
5 0

Answer:

a. P-value=0.421

b. not significant

Step-by-step explanation:

check attachment for further details

Download pdf
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"greater than" symbol is represented by '>'

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