Solved: In Exercises 520, assume that the two samples are
Chapter 9, Problem 17(choose chapter or problem)
In Exercises 520, assume that the two samples are independent simple random samplesselected from normally distributed populations, and do not assume that the populationstandard deviations are equal. Do the following:a. Test the given claim using the P-value method or critical value method.b. Construct a confidence interval suitable for testing the given claim. IQ and Lead Exposure Repeat Exercise 16 after replacing the low lead level group withthe following full IQ scores from the medium lead level group.72 90 92 71 86 79 83 114 100 93 9198 91 46 85 82 97 91 92 77 111 78
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