It takes an average of 10.9 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will increase if the patient is immediately told the truth about the injury. The EMT randomly selected 63 injured patients to immediately tell the truth about the injury and noticed that they averaged 11.3 minutes for their blood to begin clotting after their injury. Their standard deviation was 1.39 minutes. What can be concluded at the the a = 0.01 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: F H₁: PV > c. The test statistic d. The p-value = e. The p-value is ? a 10.9 10.9 = 2.284 (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
#25 d-f
O Question 25
▼
It takes an average of 10.9 minutes for blood to begin clotting after an injury. An EMT wants to see if the
average will increase if the patient is immediately told the truth about the injury. The EMT randomly
selected 63 injured patients to immediately tell the truth about the injury and noticed that they averaged
11.3 minutes for their blood to begin clotting after their injury. Their standard deviation was 1.39 minutes.
What can be concluded at the the a= 0.01 level of significance?
Ho: P
H₁: P
< >
a. For this study, we should use t-test for a population mean
b. The null and alternative hypotheses would be:
=
c. The test statistic t ✓ = 2.284
10.9
10.9
(please show your answer to 3 decimal places.)
(Please show your answer to 4 decimal places.)
d. The p-value =
e. The p-value is ? ✓ a
f. Based on this, we should
g. Thus, the final conclusion is that ...
Select an answer the null hypothesis.
O The data suggest the population mean is not significantly greater than 10.9 at a = 0.01, 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 10.9.
O The data suggest the populaton mean is significantly greater than 10.9 at a = 0.01, 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 greater than 10.9.
O The data suggest that the population mean is not significantly greater than 10.9 at a = 0.01,
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 greater
than 10.9.
Transcribed Image Text:O Question 25 ▼ It takes an average of 10.9 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will increase if the patient is immediately told the truth about the injury. The EMT randomly selected 63 injured patients to immediately tell the truth about the injury and noticed that they averaged 11.3 minutes for their blood to begin clotting after their injury. Their standard deviation was 1.39 minutes. What can be concluded at the the a= 0.01 level of significance? Ho: P H₁: P < > a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: = c. The test statistic t ✓ = 2.284 10.9 10.9 (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) d. The p-value = e. The p-value is ? ✓ a f. Based on this, we should g. Thus, the final conclusion is that ... Select an answer the null hypothesis. O The data suggest the population mean is not significantly greater than 10.9 at a = 0.01, 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 10.9. O The data suggest the populaton mean is significantly greater than 10.9 at a = 0.01, 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 greater than 10.9. O The data suggest that the population mean is not significantly greater than 10.9 at a = 0.01, 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 greater than 10.9.
Expert Solution
steps

Step by step

Solved in 4 steps

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman