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A recent study investigated tractor skidding distances along a road in a forest. The skidding distances (in meters) were measured at 20 randomly selected road sites. The data are given in the accompanying table. A logger working on the road claims that the mean skidding distance is at least 425 meters. Is there sufficient evidence to refute this claim? Use a = 0.05. Click the icon to view the table. State the hypotheses to test if there is sufficient evidence to refute the claim that the mean skidding distance is at least 425 meters. Choose the correct answer below. А. Но: и 3D425 Ha: H#425 В. Но: и3 425 Hgi H<425 Data Table O C. Ho: H= 425 Ha: µ > 425 D. H : μέ 425 Hai H = 425 Calculate the value of the test statistic. 484 349 451 197 287 414 443 583 436 562 376 290 178 269 281 392 316 311 138 437 t = (Round to two decimal places as needed.) Calculate the p-value. Print Done p-value = (Round to four decimal places as needed.) Make the appropriate conclusion. Choose the correct answer below. O A. Do not reject Ho. There is insufficient evidence at the a = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is not enough evidence to refute the claim. B. Do not reject Ho. There is sufficient evidence at the a = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is enough evidence to refute the claim. O C. Reject Ho. There is insufficient evidence at the oa = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is not enough evidence to refute the claim. O D. Reject Ho. There is sufficient evidence at the a = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is enough evidence to refute the claim.

A recent study investigated tractor skidding distances along a road in a forest. The skidding distances (in meters) were measured at 20 randomly selected road sites. The data are given in the accompanying table. A logger working on the road claims that the mean skidding distance is at least 425 meters. Is there sufficient evidence to refute this claim? Use a = 0.05. Click the icon to view the table. State the hypotheses to test if there is sufficient evidence to refute the claim that the mean skidding distance is at least 425 meters. Choose the correct answer below. А. Но: и 3D425 Ha: H#425 В. Но: и3 425 Hgi H<425 Data Table O C. Ho: H= 425 Ha: µ > 425 D. H : μέ 425 Hai H = 425 Calculate the value of the test statistic. 484 349 451 197 287 414 443 583 436 562 376 290 178 269 281 392 316 311 138 437 t = (Round to two decimal places as needed.) Calculate the p-value. Print Done p-value = (Round to four decimal places as needed.) Make the appropriate conclusion. Choose the correct answer below. O A. Do not reject Ho. There is insufficient evidence at the a = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is not enough evidence to refute the claim. B. Do not reject Ho. There is sufficient evidence at the a = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is enough evidence to refute the claim. O C. Reject Ho. There is insufficient evidence at the oa = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is not enough evidence to refute the claim. O D. Reject Ho. There is sufficient evidence at the a = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is enough evidence to refute the claim.

MATLAB: An Introduction with Applications
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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A recent study investigated tractor skidding distances along a road in a forest. The skidding distances (in meters) were measured at 20 randomly selected road sites. The data are given in the accompanying table. A logger working on the road claims that the mean skidding distance is at least 425 meters. Is there sufficient evidence to refute this claim? Use a = 0.05. Click the icon to view the table. State the hypotheses to test if there is sufficient evidence to refute the claim that the mean skidding distance is at least 425 meters. Choose the correct answer below. А. Но: и 3D425 Ha: H#425 В. Но: и3 425 Hgi H<425 Data Table O C. Ho: H= 425 Ha: µ > 425 D. H : μέ 425 Hai H = 425 Calculate the value of the test statistic. 484 349 451 197 287 414 443 583 436 562 376 290 178 269 281 392 316 311 138 437 t = (Round to two decimal places as needed.) Calculate the p-value. Print Done p-value = (Round to four decimal places as needed.) Make the appropriate conclusion. Choose the correct answer below. O A. Do not reject Ho. There is insufficient evidence at the a = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is not enough evidence to refute the claim. B. Do not reject Ho. There is sufficient evidence at the a = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is enough evidence to refute the claim. O C. Reject Ho. There is insufficient evidence at the oa = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is not enough evidence to refute the claim. O D. Reject Ho. There is sufficient evidence at the a = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is enough evidence to refute the claim.
Transcribed Image Text:A recent study investigated tractor skidding distances along a road in a forest. The skidding distances (in meters) were measured at 20 randomly selected road sites. The data are given in the accompanying table. A logger working on the road claims that the mean skidding distance is at least 425 meters. Is there sufficient evidence to refute this claim? Use a = 0.05. Click the icon to view the table. State the hypotheses to test if there is sufficient evidence to refute the claim that the mean skidding distance is at least 425 meters. Choose the correct answer below. А. Но: и 3D425 Ha: H#425 В. Но: и3 425 Hgi H<425 Data Table O C. Ho: H= 425 Ha: µ > 425 D. H : μέ 425 Hai H = 425 Calculate the value of the test statistic. 484 349 451 197 287 414 443 583 436 562 376 290 178 269 281 392 316 311 138 437 t = (Round to two decimal places as needed.) Calculate the p-value. Print Done p-value = (Round to four decimal places as needed.) Make the appropriate conclusion. Choose the correct answer below. O A. Do not reject Ho. There is insufficient evidence at the a = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is not enough evidence to refute the claim. B. Do not reject Ho. There is sufficient evidence at the a = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is enough evidence to refute the claim. O C. Reject Ho. There is insufficient evidence at the oa = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is not enough evidence to refute the claim. O D. Reject Ho. There is sufficient evidence at the a = 0.05 level of significance to conclude that the true mean skidding distance is less than 425 meters. Thus, there is enough evidence to refute the claim.
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