please answer a, b, c B. H0: P OR μ H1: P OR μ C. T or z statistic
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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Topic Video
Question
please answer a, b, c
B. H0:
P OR μ
H1:
P OR μ
C. T or z statistic

Transcribed Image Text:9% of all Americans suffer from sleep apnea. A researcher suspects that a lower percentage of those who
live in the inner city have sleep apnea. Of the 384 people from the inner city surveyed, 23 of them suffered
from sleep apnea. What can be concluded at the level of significance of a = 0.10?
a. For this study, we should use Select an answer
b. The null and alternative hypotheses would be:
Ho: ? v||Select an answer v
(please enter a decimal)
H,: ? vSelect an answer v
(Please enter a decimal)
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 ?Va
f. Based on this, we should Select an answer v the null hypothesis.
g. Thus, the final conclusion is that ...
O The data suggest the populaton proportion is significantly smaller than 9% at a = 0.10, so
there is sufficient evidence to conclude that the population proportion of inner city residents
who have sleep apnea is smaller than 9%
O The data suggest the population proportion is not significantly smaller than 9% at a = 0.10, so
there is not sufficient evidence to conclude that the population proportion of inner city
residents who have sleep apnea is smaller than 9%.
O The data suggest the population proportion is not significantly smaller than 9% at a = 0.10, so
there is sufficient evidence to conclude that the population proportion of inner city residents
who have sleep apnea is equal to 9%.
h. Interpret the p-value in the context of the study.
O If the sample proportion of inner city residents who have sleep apnea is 6% and if another 384
inner city residents are surveyed then there would be a 1.96% chance of concluding that fewer
than 9% of inner city residents have sleep apnea.
O There is a 9% chance of a Type I error
O If the population proportion of inner city residents who have sleep apnea is 9% and if another
384 inner city residents are surveyed then there would be a 1.96% chance fewer than 6% of the
384 residents surveyed have sleep apnea.
O There is a 1.96% chance that fewer than 9% of all inner city residents have sleep apnea.
i. Interpret the level of significance in the context of the study.
Olf the population proportion of inner city residents who have sleep apnea is smaller than 9%
and if another 384 inner city residents are surveyed then there would be a 10% chance that we
would end up falsely concluding that the proportion of all inner city residents who have sleep
annea is equal to 9%.
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