It takes an average of 8.8 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will decline if the patient is immediately told the truth about the injury. The EMT randomly selected 44 injured patients to immediately tell the truth about the injury and noticed that they averaged 8.4 minutes for their blood to begin clotting after their injury. Their standard deviation was 1.98 minutes. What can be concluded at the the a = 0.05 level of significance? a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Ho: Pv %3D H1: c. The test statistic t v is -1.34. Enter it here (please show your answer to 3 decimal places.) d. The p-value is 0.0936337479. Enter it here |(Please show your answer to 4 decimal places.) e. The p-value is > v f. Based on this, we should fail to reject the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the populaton mean is significantly less than 8.8 at a = 0.05, so there is statistically significant evidence to conclude that the population mean time for blood to begin clotting after an injury if the patient is told the truth immediately is less than 8.8. O The data suggest the population mean is not significantly less than 8.8 at a = 0.05, so there is statistically significant evidence to conclude that the population mean time for blood to begin clotting after an injury if the patient is told the truth immediately is equal to 8.8. The data suggest that the population mean is not significantly less than 8.8 at a = 0.05, so there is statistically insignificant evidence to conclude that the population mean time for blood to begin clotting after an injury if the patient is told the truth immediately is less than 8.8.
It takes an average of 8.8 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will decline if the patient is immediately told the truth about the injury. The EMT randomly selected 44 injured patients to immediately tell the truth about the injury and noticed that they averaged 8.4 minutes for their blood to begin clotting after their injury. Their standard deviation was 1.98 minutes. What can be concluded at the the a = 0.05 level of significance? a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Ho: Pv %3D H1: c. The test statistic t v is -1.34. Enter it here (please show your answer to 3 decimal places.) d. The p-value is 0.0936337479. Enter it here |(Please show your answer to 4 decimal places.) e. The p-value is > v f. Based on this, we should fail to reject the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the populaton mean is significantly less than 8.8 at a = 0.05, so there is statistically significant evidence to conclude that the population mean time for blood to begin clotting after an injury if the patient is told the truth immediately is less than 8.8. O The data suggest the population mean is not significantly less than 8.8 at a = 0.05, so there is statistically significant evidence to conclude that the population mean time for blood to begin clotting after an injury if the patient is told the truth immediately is equal to 8.8. The data suggest that the population mean is not significantly less than 8.8 at a = 0.05, so there is statistically insignificant evidence to conclude that the population mean time for blood to begin clotting after an injury if the patient is told the truth immediately is less than 8.8.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:It takes an average of 8.8 minutes for blood to begin clotting after an injury. An EMT wants to see if the
average will decline if the patient is immediately told the truth about the injury. The EMT randomly
selected 44 injured patients to immediately tell the truth about the injury and noticed that they averaged
8.4 minutes for their blood to begin clotting after their injury. Their standard deviation was 1.98 minutes.
What can be concluded at the the a = 0.05 level of significance?
a. For this study, we should use t-test for a population mean
b. The null and alternative hypotheses would be:
Но:
%3D
H1:
c. The test statistic t v
is -1.34. Enter it here
(please show your answer to 3 decimal
places.)
d. The p-value is 0.0936337479. Enter it here
(Please show your answer to 4 decimal places.)
e. The p-value is >
f. Based on this, we should fail to reject
the null hypothesis.
g. Thus, the final conclusion is that ...
O The data suggest the populaton mean is significantly less than 8.8 at a = 0.05, so there is
statistically significant evidence to conclude that the population mean time for blood to begin
clotting after an injury if the patient is told the truth immediately is less than 8.8.
O The data suggest the population mean is not significantly less than 8.8 at a = 0.05, so there is
statistically significant evidence to conclude that the population mean time for blood to begin
clotting after an injury if the patient is told the truth immediately is equal to 8.8.
The data suggest that the population mean is not significantly less than 8.8 at a = 0.05, so
there is statistically insignificant evidence to conclude that the population mean time for
blood to begin clotting after an injury if the patient is told the truth immediately is less than
8.8.
%3D
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