Question: 0 Question 7 v E 0/1 pt '0 3 8 99 (9 Details You want to obtain a sample to estimate how much parents spend

0 Question 7 v E 0/1 pt '0 3 8 99 (9 Details 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 a = 22.2 dollars. You would like to be 90% confident that your estimate is within 1.5 dollar(s) of average spending on the birthday parties. How many parents do you have to sample? Submit

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