Question
Asmart phone company has a 1 year manufacturer's warranty on the device. The company considers the overall quality to be acceptable if less than 8%
Asmart phone company has a 1 year manufacturer's warranty on the device. The company considers the overall quality to be acceptable if less than 8% are returned within 1 year.
The company randomly tracks 250 phones that have been used for 1 year. They find that 11 of them were returned or repaired due to manufacturer's defect within the first year.With this data, we test the following hypotheses at the 5% significance level.
H0: The proportion of phones that are defective is equal to 0.08.
Ha: The proportion of phones that are defective is less than 0.08.
The P-value is 0.15. Which conclusion is correct?
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started
A First Course in Differential Equations with Modeling Applications
Authors: Dennis G. Zill
10th edition
978-1111827052
