12% 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 335 people from the inner city surveyed, 34 of them suffered from sleep apnea. What can be concluded at the level of significance of a = 0.01? a. For this study, we should use z-test for a population proportion v b. The null and alternative hypotheses would be: Ho: [?v Select an answer ♥ (please enter a decimal) |(Please enter a decimal) H3: ?v Select an answer c. The test statistic ?v = (please show your answer to 4 decimal places.) d. The p-value = |(Please show your answer to 4 decimal places.) e. The p-value is > f Based on this vwe should fail to reiect Vy the null hypothesis

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12% 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 335 people from the inner city surveyed, 34
of them suffered from sleep apnea. What can be concluded at the level of significance of a = 0.01?
a. For this study, we should use z-test for a population proportion ♥
b. The null and alternative hypotheses would be:
Ho: ? Select an answer
|(please enter a decimal)
Hạ ?v Select an answer ♥
(Please enter a decimal)
c. The test statistic ?v =
(please show your answer to 4 decimal places.)
d. The p-value =
(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 proportion is significantly smaller than 12% at a= 0.01,
so there is sufficient evidence to conclude that the population proportion of inner city
residents who have sleep apnea is smaller than 12%
The data suggest the population proportion is not significantly smaller than 12% at a =
0.01, so there is not sufficient evidence to conclude that the population proportion of
inner city residents who have sleep apnea is smaller than 12%.
O The data suggest the population proportion is not significantly smaller than 12% at a =
0.01, so there is sufficient evidence to conclude that the population proportion of inner
city residents who have sleep apnea is equal to 12%.
h. Interpret the p-value in the context of the study.
Olf the sample proportion of inner city residents who have sleep apnea is 10% and if
another 335 inner city residents are surveyed then there would be a 14.86% chance of
concluding that fewer than 12% of inner city residents have sleep apnea.
O There is a 12% chance of a Type l error
O There is a 14.86% chance that fewer than 12% of all inner city residents have sleep
Transcribed Image Text:12% 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 335 people from the inner city surveyed, 34 of them suffered from sleep apnea. What can be concluded at the level of significance of a = 0.01? a. For this study, we should use z-test for a population proportion ♥ b. The null and alternative hypotheses would be: Ho: ? Select an answer |(please enter a decimal) Hạ ?v Select an answer ♥ (Please enter a decimal) c. The test statistic ?v = (please show your answer to 4 decimal places.) d. The p-value = (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 proportion is significantly smaller than 12% at a= 0.01, so there is sufficient evidence to conclude that the population proportion of inner city residents who have sleep apnea is smaller than 12% The data suggest the population proportion is not significantly smaller than 12% at a = 0.01, so there is not sufficient evidence to conclude that the population proportion of inner city residents who have sleep apnea is smaller than 12%. O The data suggest the population proportion is not significantly smaller than 12% at a = 0.01, so there is sufficient evidence to conclude that the population proportion of inner city residents who have sleep apnea is equal to 12%. h. Interpret the p-value in the context of the study. Olf the sample proportion of inner city residents who have sleep apnea is 10% and if another 335 inner city residents are surveyed then there would be a 14.86% chance of concluding that fewer than 12% of inner city residents have sleep apnea. O There is a 12% chance of a Type l error O There is a 14.86% chance that fewer than 12% of all inner city residents have sleep
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