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yarga [219]
2 years ago
5

I need help with this one please

Mathematics
2 answers:
Helen [10]2 years ago
8 0
6x I believe so have a. Nice day bby
klemol [59]2 years ago
5 0
6x I think I’m sorry if it’s not
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A random sample of 500 reports an average yearly income of $42,000 with a standard deviation of $1000. An estimate of the parame
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Answer:

E

Step-by-step explanation:

Confidence Interval = mean + or - error margin

Mean = 42,000, error margin = width of estimate of the parameter ÷ 2 = 175 ÷ 2 = 87.50

We can be 95% confident that the population mean is 42,000 plus or minus 87.50

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3 years ago
I just need the final answer. thanks! :)
aleksandr82 [10.1K]
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Step-by-step explanation:

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