a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Họ: ? v Select an answer v H: ?v Select an answer v c. The test statistic ?= |(please show your answer to 3 decimal places.)
a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Họ: ? v Select an answer v H: ?v Select an answer v c. The test statistic ?= |(please show your answer to 3 decimal places.)
Chapter10: Exponential And Logarithmic Functions
Section10.3: Evaluate And Graph Logarithmic Functions
Problem 10.53TI: In 1906, San Francisco experienced an intense earthquake with a magnitude of 7.8 on the Richter...
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Transcribed Image Text:It takes an average of 11.9 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 47 injured patients to immediately tell the truth about the injury and noticed that
they averaged 12.4 minutes for their blood to begin clotting after their injury. Their standard
deviation was 4.09 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: ?vSelect an answer v
Hj: ?vSelect an answer v
c. The test statistic ? v =
(please show your answer to 3 decimal places.)
d. The p-value =
|(Please show your answer to 4 decimal places.)
e. The p-value is ? ♥ a
f. Based on this, we should Select an answer v the null hypothesis.
g. Thus, the final conclusion is that ...
O The data suggest that the population mean is not significantly greater than 11.9 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 11.9.
Ohe data suggest the populaton mean is significantly greater than 19 at a = 0.01, so
there is statistically sisnificant evidence to conclude that the pooulation mean time for
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