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-five of the 98 infants randomly assigned to hypothermia died and 42 of the 93 infants in the control group died. Complete parts (a) and (b) below. a. Find and compare the sample percentages that died for these two groups The percentage of babies in the treatment group that died was . (Type an integer or decimal rounded to two decimal places as needed.) The percentage of babies in the control group that died was%. (Type an integer or decimal rounded to two decimal places as needed.) 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 p2 represent the proportion of babies with these problems that would die without treatment. Write the hypother Họ: Find or this test P1P2 decimal places as needed.) P1 "P2 Find is test. P1 P2 pva to three decimal places as needed.) Wha 1 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-five of the 98 infants randomly assigned to hypothermia died and 42 of the 93 infants in the control group died. Complete parts (a) and (b) below. a. Find and compare the sample percentages that died for these two groups The percentage of babies in the treatment group that died was . (Type an integer or decimal rounded to two decimal places as needed.) The percentage of babies in the control group that died was%. (Type an integer or decimal rounded to two decimal places as needed.) 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 p2 represent the proportion of babies with these problems that would die without treatment. Write the hypother Họ: Find or this test P1P2 decimal places as needed.) P1 "P2 Find is test. P1 P2 pva to three decimal places as needed.) Wha 1 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.
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Transcribed Image Text: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-five of the 98 infants randomly assigned to hypothermia died and 42 of the 93 infants in the control group died. Complete parts (a) and (b) below.
a. Find and compare the sample percentages that died for these two groups.
The percentage of babies in the treatment group that died was %.
(Type an integer or decimal rounded to two decimal places as needed.)
The percentage of babies in the control group that died was %.
(Type an integer or decimal rounded to two decimal places as needed.)
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 p2 represent the proportion of babies with these problems that would die without treatment. Write the hypotheses
Họ:
Ha:
Find
or this test.
P1 > P2
z=[
decimal places as needed.)
P1 = P2
Find
is test.
P1 <P2
p-va
to three decimal places as needed.)
P1 # P2
Wha
n 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-five of the 98 infants randomly assigned to hypothermia died and 42 of the 93 infants in the control group died. Complete parts (a) and (b) below.
a. Find and compare the sample percentages that died for these two groups.
%.
The percentage of babies in the treatment group that died was
(Type an integer or decimal rounded to two decimal places as needed.)
The percentage of babies in the control group that died was %.
(Type an integer or decimal rounded to two decimal places as needed.)
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 p2 represent the proportion of babies with these problems that would die without treatment. Write the hypotheses for the test.
Ho:
На:
P1 <P2
Find
for this test.
P1 = P2
]=z
P1> P2
Find
decimal places as needed.)
is test.
P1 # P2
to three decimal places as needed.)
p-va
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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc2f49e8b-eabf-4587-a1db-d4952a79435d%2Fafbae5fa-1ffa-426a-af89-a76b7d612035%2Fs3l3xi_processed.png&w=3840&q=75)
Transcribed Image Text: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-five of the 98 infants randomly assigned to hypothermia died and 42 of the 93 infants in the control group died. Complete parts (a) and (b) below.
a. Find and compare the sample percentages that died for these two groups.
%.
The percentage of babies in the treatment group that died was
(Type an integer or decimal rounded to two decimal places as needed.)
The percentage of babies in the control group that died was %.
(Type an integer or decimal rounded to two decimal places as needed.)
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 p2 represent the proportion of babies with these problems that would die without treatment. Write the hypotheses for the test.
Ho:
На:
P1 <P2
Find
for this test.
P1 = P2
]=z
P1> P2
Find
decimal places as needed.)
is test.
P1 # P2
to three decimal places as needed.)
p-va
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.
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