6 In a survey 12 people were asked how much they spent on their child...
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6 In a survey 12 people were asked how much they spent on their child s last birthday gift The results appeared bell shaped with a mean of 87 and a standard deviation of 4 a 1 pt Construct a confidence interval at a 95 confidence level You do not need to list definitions or assumption checks Round solutions to the third decimal place b 2 pts State a real world interpretation of this interval
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