<span>0.0643184139836
creo que a eso te refieres!!!
hay una paguina de brainly en espanol ahi tambien te pueden ayudar
es:brainly.lat
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Answer:
nodda
Step-by-step explanation:
The answer would be E.
All you have to do is multiply 185 by 0.17 and you get your answer, which would be E.
Answer: The margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.
Step-by-step explanation:
Since we have given that
Sample size = 400
Mean = $357.75
Standard deviation = $37.89
At 95% confidence level, z = 1.96
We first find the margin of error.
Margin of error is given by
95% confidence interval would be
Hence, the margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.