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Veseljchak [2.6K]

3 years ago

5

In a survey, 31 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped

with a mean of $49 and standard deviation of $8. Find the margin of error at a 80% confidence level. Give your answer to two decimal places.

1 answer:

Andrei [34K]3 years ago

7 0

Answer:

Step-by-step explanation:

i would help you but i dont know , sorry

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KengaRu [80]

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0.55 x 100 = 55%

The answer is 55%

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Answer:

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Step-by-step explanation:

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