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In a survey, 29 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $39 and standard deviation of $18. Estimate how much a typical parent would spend on their child's birthday gift (use a 95% confidence level).

point estimate ± margin of error = ______ ± _______

Hint: Enter the point estimate in the first box and the margin or error in the second box

Give your answers to one decimal place.

Sagot :

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