Question: 36 randomly selected single people were asked how much they spend per month on groceries. The 36 people spent an average of $225 per month.

36 randomly selected single people were asked how much they spend per month on groceries. The 36 people spent an average of $225 per month. The 90% confidence interval estimate of the true mean amount spent per month on groceries is $200 to $250. There is a 10% chance the margin of error (on the estimate of the true mean) is bigger than what value

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