Are the career goals of young women changing? A Pew Poll asked young women about the importance they place on having a high-paying career or profession. Those women who said being successful in a high-paying career is €œone of the most important things€ or €œvery important€ in their lives are included in the row labeled Career in the table. Pew asked this question in 1997 and again in 2011.

a. Find and compare the sample proportions of those who had high-paying career goals in 2011 and those who had such goals in 1997.

b. Find a 95% confidence interval for the difference in proportions who said a high-paying career was important, state whether the interval captures 0, and explain what that means. Also, if applicable, state clearly whether the women in 2011 were more or less career-oriented than those in 1997. Assume that the conditions necessary for using the confidence interval are met.

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1997 2011 Career 0 403 83 207 No