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In random, independent samples of 250 adults and 375 teenagers who watched a certain television show, 147 adults and 228 teens indicated that they liked the show. Let P1 be the proportion of all adults watching the show who liked it, and let P2 be the proportion of all teens watching the show who liked it. Find a 95% confidence interval for P1-P2. Then complete the table below.

1. What is the lower limit for 95% confidence interval?

2. What is the upper limit for 95% confidence interval?

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