A hospital reported that the normal death rate for patients with extensive burns (more than 40% of skin area) has been significantly reduced by the use of new fluid plasma compresses. Before the new treatment, the mortality rate for extensive burn patients was about 60%. Using the new compresses, the hospital found that only 43 of 92patients with extensive burns died. Use a 1% level of significance to test the claim that the mortality rate has dropped. (a) What is the level of significance? What is the value of the sample test statistic? (Round your answer to two decimal places.)
A hospital reported that the normal death rate for patients with extensive burns (more than 40% of skin area) has been significantly reduced by the use of new fluid plasma compresses. Before the new treatment, the mortality rate for extensive burn patients was about 60%. Using the new compresses, the hospital found that only 43 of 92patients with extensive burns died. Use a 1% level of significance to test the claim that the mortality rate has dropped. (a) What is the level of significance? What is the value of the sample test statistic? (Round your answer to two decimal places.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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A hospital reported that the normal death rate for patients with extensive burns (more than 40% of skin area) has been significantly reduced by the use of new fluid plasma compresses. Before the new treatment, the mortality rate for extensive burn patients was about 60%. Using the new compresses, the hospital found that only 43 of 92patients with extensive burns died. Use a 1% level of significance to test the claim that the mortality rate has dropped.
(a) What is the level of significance?
What is the value of the sample test statistic? (Round your answer to two decimal places.)
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