3. A pharmacist wants to know if a blood pressure medication is effective. 10 subjects have their blood pressures record

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3. A pharmacist wants to know if a blood pressure medication is effective. 10 subjects have their blood pressures recorded. After 12 weeks on the medication, the same subjects have their blood pressure recorded again. For this test, only systolic pressure is of concern. Test at the 1% significance level. 1 3 Subject Before Axtar 2 163 159 4 12 5 th 167 16 16159 158 159 155 16 Test Statistic -value = Conclusion:

Subject Before After 1 161 158 2 162 159 3 165 166 4 162 160 5 166 167 6 171 169 7 8 9 10 160 157 159 166 159 158 159 155

4. A bank has recently acquired a new branch and thus has customers in the state of Michigan. They are interested in the default rate in their new territory. They wish to test the hypothesis that the default rate is different from their current customer base, the state of Texas. They sample 430 files of their current customers in Texas, and find that 39 have defaulted. In Michigan, another sample of 300 customers shows 42 have defaulted on their loans. At 5% level of significance, can we say that the default rate in Michigan is different from Texas? Test Statistic = -value = Conclusion: