Question
12% of all Americans suffer from sleep apnea. A researcher suspects that a higher percentage of those who live in the inner city have sleep
12% of all Americans suffer from sleep apnea. A researcher suspects that a higher percentage of those who live in the inner city have sleep apnea. Of the 362 people from the inner-city surveyed, 51 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: z-test for population proportion or t-test for a population mean
b. Pinole an alternative hypothesis would be:
Ho^:
H1^:
c. the test statistic = (please show your answer to three decimal places)
d. the p-value= (please show your answer to four decimal places)
e. the p-value is > or
f. based on this, we should: reject, accept, or fail to reject the null hypothesis
i appreciate any help!!
Is the average time to complete an obstacle course longer when a patch is placed over the right eye than when a patch is placed over the left eye? Eight randomly selected volunteers first completed an obstacle course with a patch over one eye and then completed an equally difficult obstacle course with a patch over the other eye. The completion times are shown below. "Left" means the patch was placed over the left eye and "Right" means the patch was placed over the right eye. Time to Complete the Course Right 41 42 45 50 43 41 42 Left 42 48 43 41 13 41 42 Assume a Normal distribution. What can be concluded at the the a = 0.05 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer Select an answer v Select an answer v| (please enter a decimal) H1: Select an answer |Select an answer |Select an answer | (Please enter a decimal) b. The test statistic |? = (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is |? va e. Based on this, we should |Select an answer | the null hypothesis. f. Thus, the final conclusion is that ... O The results are statistically insignificant at a = 0.05, so there is insufficient evidence to conclude that the population mean time to complete the obstacle course with a patch over the right eye is greater than the population mean time to complete the obstacle course with a patch over the left eye. The results are statistically insignificant at or = 0.05, so there is statistically significant evidence to conclude that the population mean time to complete the obstacle courseStep by Step Solution
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