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A test on car braking reaction times for men between 18 and 30 years old has produced a mean and standard deviation of 0.63 and 0.143 seconds respectively. When 40 male drivers of this age group were randomly selected and tested for their braking reaction times, a mean of 0.578 second came out. At the level of significance 0.01, test the claim of the driving instructor that his graduates had faster reaction time.

A test on car braking reaction times for men between 18 and 30 years old has produced a mean and standard deviation of 0.63 and 0.143 seconds respectively. When 40 male drivers of this age group were randomly selected and tested for their braking reaction times, a mean of 0.578 second came out. At the level of significance 0.01, test the claim of the driving instructor that his graduates had faster reaction time.

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 test on car braking reaction times for men between 18 and 30 years old has produced a mean and standard deviation of 0.63 and 0.143 seconds respectively. When 40 male drivers of this age group were randomly selected and tested for their braking reaction times, a mean of 0.578 second came out. At the level of significance 0.01, test the claim of the driving instructor that his graduates had faster reaction time.

one-tail two-tails DF 1 2 3 4 5 6 7 8 9 P 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 60 120 1000 Inf 0.1 0.2 3.078 1.886 1.638 1.533 1.476 1.44 1.415 1.397 1.383 1.372 1.363 1.356 1.35 1.345 1.341 1.337 1.333 1.33 1.328 1.325 1.323 1.321 1.319 1.318 1.316 1.315 1.314 1.313 1.311 1.31 1.296 1.289 1.282 1.282 0.05 0.1 0.025 0.05 6.314 12.706 2.92 4.303 2.353 3.182 2.132 2.776 2.015 2.571 1.943 2.447 1.895 2.365 1.86 2.306 1.833 2.262 1.812 2.228 1.796 2.201 1.782 2.179 1.771 2.16 1.761 2.145 1.753 2.131 1.746 2.12 1.74 2.11 1.734 2.101 1.729 2.093 1.725 2.086 1.721 2.08 1.717 2.074 1.714 2.069 1.711 2.064 1.708 2.06 1.706 2.056 1.703 2.052 1.701 2.048 1.699 2.045 1.697 2.042 1.671 1.658 1.646 1.645 2 1.98 1.962 1.96 0.01 0.02 0.005 0.01 2.624 2.602 2.583 2.567 2.552 2.539 2.528 2.518 2.508 2.5 2.492 2.485 2.479 2.473 2.467 2.462 2.457 2.39 2.358 2.33 2.326 0.001 0.002 31.821 63.656 318.289 6.965 9.925 22.328 4.541 5.841 10.214 3.747 4.604 7.173 3.365 4.032 5.894 3.143 3.707 5.208 2.998 3.499 4.785 2.896 3.355 4.501 2.821 3.25 4.297 2.764 3.169 4.144 2.718 3.106 4.025 2.681 3.055 3.93 3.012 3.852 2.977 3.787 2.947 3.733 2.921 3.686 2.898 3.646 2.878 3.61 2.861 3.579 2.845 3.552 2.831 3.527 2.819 3.505 2.807 3.485 2.797 3.467 2.787 3.45 2.779 3.435 2.771 3.421 2.763 3.408 2.756 3.396 2.75 3.385 2.66 3.232 2.617 3.16 2.581 2.576 3.098 3.091 0.0005 0.001 636.578 31.6 12.924 8.61 6.869 5.959 5.408 5.041 4.781 4.587 4.437 4.318 4.221 4.14 4.073 4.015 3.965 3.922 3.883 3.85 3.819 3.792 3.768 3.745 3.725 3.707 3.689 3.674 3.66 3.646 3.46 3.373 3.3 3.291
Transcribed Image Text:one-tail two-tails DF 1 2 3 4 5 6 7 8 9 P 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 60 120 1000 Inf 0.1 0.2 3.078 1.886 1.638 1.533 1.476 1.44 1.415 1.397 1.383 1.372 1.363 1.356 1.35 1.345 1.341 1.337 1.333 1.33 1.328 1.325 1.323 1.321 1.319 1.318 1.316 1.315 1.314 1.313 1.311 1.31 1.296 1.289 1.282 1.282 0.05 0.1 0.025 0.05 6.314 12.706 2.92 4.303 2.353 3.182 2.132 2.776 2.015 2.571 1.943 2.447 1.895 2.365 1.86 2.306 1.833 2.262 1.812 2.228 1.796 2.201 1.782 2.179 1.771 2.16 1.761 2.145 1.753 2.131 1.746 2.12 1.74 2.11 1.734 2.101 1.729 2.093 1.725 2.086 1.721 2.08 1.717 2.074 1.714 2.069 1.711 2.064 1.708 2.06 1.706 2.056 1.703 2.052 1.701 2.048 1.699 2.045 1.697 2.042 1.671 1.658 1.646 1.645 2 1.98 1.962 1.96 0.01 0.02 0.005 0.01 2.624 2.602 2.583 2.567 2.552 2.539 2.528 2.518 2.508 2.5 2.492 2.485 2.479 2.473 2.467 2.462 2.457 2.39 2.358 2.33 2.326 0.001 0.002 31.821 63.656 318.289 6.965 9.925 22.328 4.541 5.841 10.214 3.747 4.604 7.173 3.365 4.032 5.894 3.143 3.707 5.208 2.998 3.499 4.785 2.896 3.355 4.501 2.821 3.25 4.297 2.764 3.169 4.144 2.718 3.106 4.025 2.681 3.055 3.93 3.012 3.852 2.977 3.787 2.947 3.733 2.921 3.686 2.898 3.646 2.878 3.61 2.861 3.579 2.845 3.552 2.831 3.527 2.819 3.505 2.807 3.485 2.797 3.467 2.787 3.45 2.779 3.435 2.771 3.421 2.763 3.408 2.756 3.396 2.75 3.385 2.66 3.232 2.617 3.16 2.581 2.576 3.098 3.091 0.0005 0.001 636.578 31.6 12.924 8.61 6.869 5.959 5.408 5.041 4.781 4.587 4.437 4.318 4.221 4.14 4.073 4.015 3.965 3.922 3.883 3.85 3.819 3.792 3.768 3.745 3.725 3.707 3.689 3.674 3.66 3.646 3.46 3.373 3.3 3.291
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