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Question 8 6 points Save Answer A survey asked a random sample of adults whether they had visited a public library in the last 12 months. The proportion saying "yes" was 51% for parents (of minor children), and 42% for non-parents. For each numbered question, indicate the correct answer by typing the corresponding letter into the box. 1. To estimate how much higher the rate of library visits is for parents than for non-parents,we would use a a. hypothesis test b. confidence interval c. neither 2. To determine whether the sample provides sufficient evidence to conclude that there is a difference in the rate of library visits between parents and non-parents, we would use a a. hypothesis test b. confidence interval c. neither 3. If we want to conduct a hypothesis test: . They would use a distribution. (Type in BOOT for bootstrap, or RAND for randomization.) . The distribution would be centered at the number (Type in the actual number.) 4. If we want to create a confidence interval: . We would use a distribution. (Type in BOOT for bootstrap, or RAND for randomization . The distribution would be centered at the value (Type in the actual number.)