Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

A car manufacturer, Swanson, claims that the mean lifetime of one of its car engines is greater than 2 2 0 , 0 0 1

A car manufacturer, Swanson, claims that the mean lifetime of one of its car engines is greater than 220,001 miles, which is the mean lifetime of the engine of a competitor. The mean lifetime for a random sample of 23 of the Swanson engines was x =226,450 miles with a standard deviation, s, of 11,502 miles. Test the Swanson's claim using a significance level of =0.02.
A.
P-value =0.00670<0.02, reject the null hypothesis. There is enough evidence to conclude that the mean lifetime of this car engine is greater than 220,001 miles.
B.
P-value =0.00431<0.01, reject the null hypothesis. There is enough evidence to conclude that the mean lifetime of this car engine is greater than 220,001 miles.
C.
P-value =0.01341<0.05, reject the null hypothesis. There is enough evidence to conclude that the mean lifetime of this car engine is greater than 220,001 miles.
D.
P-value =0.02670<0.05, reject the null hypothesis. There is enough evidence to conclude that the mean lifetime of this car engine is greater than 220,001 miles.

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Linear Algebra

Authors: Jim Hefferon

1st Edition

978-0982406212, 0982406215

More Books

Students also viewed these Mathematics questions