Researchers speculate that drivers who do not wear a seatbelt are more likely to speed than drivers who do wear one. A random sample of 20 drivers had their speed measured at a certain point, and were then observed to see whether they were wearing a seatbelt. Summary statistics for the drivers are shown below:Summary statistics for speed: Grouped by: seatbeltSeatbelt n mean Std. dev.n 8 72.5 8.815571y 12 65.333336 7.487363 A test was carried out to test the null hypothesis that the mean speed was equal for the drivers wearing and not wearing seatbelts, against the alternative that drivers not wearing seat belts travel faster on average. The test statistic was -1.889 (seatbelt mean minus non-sentbelt mean). Using the methods learned in class, what can you say about the P-value for this test statistic?(a) 0.0588(b) larger than 0.10(c) 0.0294(d) between 0,05 and 0.10(e) between 0.025 and 0.05 ンResearchers speculate that drivers who do not wear a seatbelt are more likely to speedthan drivers who do wear ene. A random sample of 20 drivers had their speed measuredst a certain point, and were then observed to see whether they were wearing a seatbelt.Summary statistics for the drivers are shown below:1Summary statisticc for speed:Group by: seatbeltseatbelt n MeanStd. Dev.8 72.58.815571y12 65.333226 7.487363A test was carried out to test the null hypothesis that the mean speed was equal forthe drivers wearing and not wearing seatbelts, against the alternative that drivers nokwearing seat belts travel faster on average. The test statistic was -1.889 (seatbelt meanmimas non-sentbelt mean). Using the methods learned in class, what can you say aboutthe P-value for this test statistic?(a) 0.0588(b) larger than 0.10(c) 0.0294(d) between O.05 and 0.10(e) between 0.025 and 0.05

Answer :- (d) between 0,05 and 0.10 Followings are the explanation of the question

Answered: Researchers speculate that drivers who…

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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Question

Researchers speculate that drivers who do not wear a seatbelt are more likely to speed than drivers who do wear one. A random sample of 20 drivers had their speed measured at a certain point, and were then observed to see whether they were wearing a seatbelt. Summary statistics for the drivers are shown below:

Summary statistics for speed:

Grouped by: seatbelt

Seatbelt n mean Std. dev.

n 8 72.5 8.815571

y 12 65.333336 7.487363

A test was carried out to test the null hypothesis that the mean speed was equal for the drivers wearing and not wearing seatbelts, against the alternative that drivers not wearing seat belts travel faster on average. The test statistic was -1.889 (seatbelt mean minus non-sentbelt mean). Using the methods learned in class, what can you say about the P-value for this test statistic?

(a) 0.0588

(b) larger than 0.10

(d) between 0,05 and 0.10

(e) between 0.025 and 0.05