Answer:
5
Step-by-step explanation:
1. in order to calculate all the required values, it needed to solve:

2. x≥5 means, that x∈[5;+∞), where beginnig is '5'.
N= 1 a this is the answer hope i helped
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r pr
The answer is b because 95 confidence is interval for the mean lifespan
Answer:
the correct one is the first option
Step-by-step explanation:
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