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A auto maker is interested in information about how long transmissions last. A sample of transmissions are run constantly and the number of miles before the transmission fails is recorded. The auto maker claims that the transmissions can run constantly for over 150,000 miles before failure. The results of the sample are given below. Miles (1000s of miles) Мean 150.7 Variance 4.661 Observations 46 Hypothesized Mean 150 df 45 t Stat 2.185 p = Ex: 1.234 P(T<=t) one-tail 0.017 t Critical one-tail 1.679 -2 -1 1 3 P(T<=t) two-tail t Critical two-tail 0.034 2.014 t = Ex: 1.234 Confidence Level(95.0%) 0.641 What condition is met for the use of a t-distribution? Pick n = Ex: 5 x = Ex: 1.2 Degrees of freedom= Ex: 5 s = Ex: 1.234

A auto maker is interested in information about how long transmissions last. A sample of transmissions are run constantly and the number of miles before the transmission fails is recorded. The auto maker claims that the transmissions can run constantly for over 150,000 miles before failure. The results of the sample are given below. Miles (1000s of miles) Мean 150.7 Variance 4.661 Observations 46 Hypothesized Mean 150 df 45 t Stat 2.185 p = Ex: 1.234 P(T<=t) one-tail 0.017 t Critical one-tail 1.679 -2 -1 1 3 P(T<=t) two-tail t Critical two-tail 0.034 2.014 t = Ex: 1.234 Confidence Level(95.0%) 0.641 What condition is met for the use of a t-distribution? Pick n = Ex: 5 x = Ex: 1.2 Degrees of freedom= Ex: 5 s = Ex: 1.234

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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Jump to level1 A auto maker is interested in information about how long transmissions last. A sample of transmissions are run constantly and the number of miles before the transmission fails is recorded. The auto maker claims that the transmissions can run constantly for over 150,000 miles before failure. The results of the sample are given below. Miles (1000s of miles) Мean 150.7 Variance 4.661 Observations 46 Hypothesized Mean 150 df 45 t Stat 2.185 Ex: 1.234 P(T<=t) one-tail t Critical one-tail P(T<=t) two-tail t Critical two-tail 0.017 1.679 -3 -2 -1 1 0.034 2.014 t = Ex: 1.234 Confidence Level(95.0%) 0.641 What condition is met for the use of a t-distribution? Pick п 3D Ex: 5 Ex: 1.2 Degrees of freedom = Ex: 5 s = Ex: 1.234 18
Transcribed Image Text:Jump to level1 A auto maker is interested in information about how long transmissions last. A sample of transmissions are run constantly and the number of miles before the transmission fails is recorded. The auto maker claims that the transmissions can run constantly for over 150,000 miles before failure. The results of the sample are given below. Miles (1000s of miles) Мean 150.7 Variance 4.661 Observations 46 Hypothesized Mean 150 df 45 t Stat 2.185 Ex: 1.234 P(T<=t) one-tail t Critical one-tail P(T<=t) two-tail t Critical two-tail 0.017 1.679 -3 -2 -1 1 0.034 2.014 t = Ex: 1.234 Confidence Level(95.0%) 0.641 What condition is met for the use of a t-distribution? Pick п 3D Ex: 5 Ex: 1.2 Degrees of freedom = Ex: 5 s = Ex: 1.234 18
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