A study reported the results of a randomized trial of whole-body hypothermia (cooling) for neonatal hypoxic-ischemic encephalopathy (brain problems in babies due to lack of oxygen). Twenty-nine of the 99 infants randomly assigned to hypothermia died and 44 of the 97 infants in the control group died. Complete parts (a) and (b) below. The death rate was greater for babies in the V group b. Test the hypothesis that the death rate was less for those treated with hypothermia at a 0.10 significance level. Let p, represent the proportion of babies with these problems that would die after receiving hypothermia treatment and let p, represent the proportion of babies with these problems that would die without treatment. Write the hypotheses for the test. Ho: Ha Find the test statistic for this test. z=(Round to two decimal places as needed.) Find the p-value for this test. p-value = (Round to three decimal places as needed.) What is the conclusion for this test? Use a significance level of 0.10. V the null hypothesis. The death rate for the babies treated with hypothermia v the death rate for the control group.

A study reported the results of a randomized trial of whole-body hypothermia (cooling) for neonatal hypoxic-ischemic encephalopathy (brain problems in babies due to lack of oxygen). Twenty-nine of the 99 infants randomly assigned to hypothermia died and 44 of the 97 infants in the control group died. Complete parts (a) and (b) below. The death rate was greater for babies in the V group b. Test the hypothesis that the death rate was less for those treated with hypothermia at a 0.10 significance level. Let p, represent the proportion of babies with these problems that would die after receiving hypothermia treatment and let p, represent the proportion of babies with these problems that would die without treatment. Write the hypotheses for the test. Ho: Ha Find the test statistic for this test. z=(Round to two decimal places as needed.) Find the p-value for this test. p-value = (Round to three decimal places as needed.) What is the conclusion for this test? Use a significance level of 0.10. V the null hypothesis. The death rate for the babies treated with hypothermia v the death rate for the control group.

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter7: Distance And Approximation

Section7.3: Least Squares Approximation

Problem 31EQ

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