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QUESTION 1 In 2010, the Centers for Disease Control and Prevention estimated 9.4% of children under the age of 18 had asthma. They reported the

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QUESTION 1 In 2010, the Centers for Disease Control and Prevention estimated 9.4% of children under the age of 18 had asthma. They reported the standard error to be 0.4%. Assuming that the sampling distribution is symmetric and bell shaped. Find the 95% confidence interval for the proportion of all children under the age of 18 who had asthma. Answer must be in decimals rounded the 3 decimal places. Example answer 0.123 .Reminder all answers need to be in decimals. No percentages. 1. State the lower limit of the interval 2. State the higher limit of the interval QUESTION 2 As of August 2012, the national average price for a gallon of regular unleaded gasoline was $3.63. We would like to test if in 2012, the average price in Illinois was higher than $3.63. 1. What is the null hypothesis? Ho: Use appropriate notation in blank. xbar, mu, phat or p with correct symbol(s) 2. What is the alternative hypothesis? Ha: Use appropriate notation in blank. xbar, mu, phat or p with correct symbol(s) If not equal just state not equal 3. The p-value was found to be 0.009. Based on a 5% significance level what is the initial conclusion Answer should state "reject null hypothesis" or "do not reject hypothesis"

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