Out of 400 people sampled, 296 had kids

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Out of 400 people sampled, 296 had kids. Use the theory-based inference applet to find a 90% confidence interval for the true population proportion of people with kids, π

π

. Give your answers as decimals, to the tenths place.

• We are 90% confident that the proportion of people who have kids is between **** % and **** % 
• The sample statistic is  **** %. 
• The margin of error is  **** %. 
• The confidence interval can be written as **** % ±  **** %