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You want to obtain a sample to estimate how much parents spend on their kids birthday...

You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you believe the population standard deviation is approximately σ=32.1 dollars. You would like to be 98% confident that your estimate is within 1 dollar(s) of average spending on the birthday parties. How many moms do you have to sample? Do not round mid-calculation.

n =

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