It takes an average of 14.8 minutes for blood to begin clotting after an injury. An EMT wants to see if theaverage will change if the patient is immediately told the truth about the injury. The EMT randomly selected50 injured patients to immediately tell the truth about the injury and noticed that they averaged 14.3 minutesfor their blood to begin clotting after their injury. Their standard deviation was 1.48 minutes. What can beconcluded at the the a = 0.01 level of significance?a. For this study, we should use Select an answerb. The null and alternative hypotheses would be:Ho: ? € Select an answer CH₁: ? @Select an answer CO(please show your answer to 3 decimal places.)(Please show your answer to 4 decimal places.)c. The test statistic? is -2.389. Enter it hered. The p-value is 0.0207954612. Enter it heree. The p-value is ? af. Based on this, we should Select an answer the null hypothesis.g. Thus, the final conclusion is thatThe data suggest that the population mean is not significantly different from 14.8 at a = 0.01, sothere is statistically insignificant evidence to conclude that the population mean time for bloodto begin clotting after an injury if the patient is told the truth immediately is different from 14.8.O The data suggest the populaton mean is significantly different from 14.8 at a = 0.01, so there isstatistically significant evidence to conclude that the population mean time for blood to beginclotting after an injury if the patient is told the truth immediately is different from 14.8.O The data suggest the population mean is not significantly different from 14.8 at a = 0.01, sothere is statistically significant evidence to conclude that the population mean time for blood tobegin clotting after an injury if the patient is told the truth immediately is equal to 14.8.

Given information Hypothesized mean µ = 14.8 minutes Sample size (n) = 50 Mean x̅ = 14.3 minutes…

It takes an average of 14.8 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will change if the patient is immediately told the truth about the injury. The EMT randomly selected 50 injured patients to immediately tell the truth about the injury and noticed that they averaged 14.3 minutes for their blood to begin clotting after their injury. Their standard deviation was 1.48 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: ?C Select an answer C H₁: ? @ Select an answer C © (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) c. The test statistic? is -2.389. Enter it here d. The p-value is 0.0207954612. Enter it here e. The p-value is ? a f. Based on this, we should Select an answer the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest that the population mean is not significantly different from 14.8 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 different from 14.8. O The data suggest the populaton mean is significantly different from 14.8 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 different from 14.8. The data suggest the population mean is not significantly different from 14.8 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 14.8.

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 2GP