Mathematics, 12.06.2020 05:57, danksans7011

In a survey, 25 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $49 and standard deviation of $20. Construct a confidence interval in the form estimate
±
margin of error
at a 90% confidence level.

how do i do this using a TI-84 calculator

Answers: 3

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In a survey, 25 people were asked how much they spent on their child's last birthday gift. The resul...