The probability is 1% that an electrical connector that is kept dry fails during the warranty period of a portable computer. If
1 answer:
Answer:
1.4% of connectors fail during the warranty period.
Step-by-step explanation:
We have these following probabilities:
A 90% probability that a connector is kept dry.
A 10% probability that a connectors is wet.
If a connector is dry, an 1% probability of failling.
If a connector is wet, a 5% probability of failling.
What proportion of connectors fail during the warranty period?
This is 1% of 90% and 5% of 10%. So
1.4% of connectors fail during the warranty period.
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Answer:
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Step-by-step explanation:
We have to construct a confidence interval for the difference of proportions.
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