In a recent poll, 48% of 331 Americans who decided to not go to college said it was because they could not afford it. (a) Calculate a 90% confidence interval for the proportion of Americans who decide to not go to college because they cannot afford it, and interpret the interval in context. lower bound: (please round to four decimal places) (please round to four decimal places) Interpret the confidence interval upper bound: in context: We can be 90% confident that our confidence interval contains the sample proportion of Americans who choose not to go to college because they cannot afford it We can be 90% confident that the proportion of Americans who choose not to go to college because they cannot afford it is contained within our confidence interval 90% of Americans choose not to go to college because they cannot afford it

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