The IQ scores for a random sample of subjects with low lead levels in their blood and another random sample of subjects with high lead levels in their blood were collected. The statistics are...

Question 5 ( B )

Extracted text: The IQ scores for a random sample of subjects with low lead levels in their blood and another random sample of subjects with high lead levels in their blood were collected. The statistics are summarized in the accompanying table. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) to (c) 91.26016 15.79292 Low Lead Level H1 High Lead Level 2 95 27 86.11758 8.87896 below. scores. b. Construct a confidence interval appropriate for the hypothesis test in part (a). Round to one dacimal place as needed.)