It takes an average of 9.4 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 49 injured patients to immediately tell the truth about the injury and noticed that they averaged 9.1 minutes for their blood to begin clotting after their injury. Their standard deviation was 0.94 minutes. What can be concluded at the the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: Select an answer ? H1: ? Select an answer c. The test statistic ? (please show your answer to 3 decimal places.)
It takes an average of 9.4 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 49 injured patients to immediately tell the truth about the injury and noticed that they averaged 9.1 minutes for their blood to begin clotting after their injury. Their standard deviation was 0.94 minutes. What can be concluded at the the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: Select an answer ? H1: ? Select an answer c. The test statistic ? (please show your answer to 3 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
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Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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Transcribed Image Text:It takes an average of 9.4 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 49 injured patients to immediately tell the truth about the injury and noticed that
they averaged 9.1 minutes for their blood to begin clotting after their injury. Their standard
deviation was 0.94 minutes. What can be concluded at the the a = 0.01 level of significance?
a. For this study, we should use Select an answer
b. The null and alternative hypotheses would be:
Ho:
Select an answer
?
H1:
?
Select an answer
c. The test statistic ? O
(please show your answer to 3 decimal places.)
d. The p-value =
e. The p-value is ? O a
f. Based on this, we should Select an answer a the null hypothesis.
g. Thus, the final conclusion is that.
|(Please show your answer to 4 decimal places.)
The data suggest the populaton mean is significantly less than 9.4 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 less than
9.4.
The data suggest that the population mean is not significantly less than 9.4 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
less than 9.4.
O The data suggest the population mean is not significantly less than 9.4 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 9.4.
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