In a survey, 12 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $30 and standard deviation of $8. Construct a confidence interval at a 98% confidence level. Give your answers to one decimal place.

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Q: .9938 (d) P(0 < z < 1.5)

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Q: holders is as follows : Number Age as on nearest birthday 17-19-5 20-25-5 26-35-5 36-40-5 41-50-5 51...

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