×
Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 4.7 - Problem 7e
Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 4.7 - Problem 7e

×

# A certain type of component can be purchased new or used.

ISBN: 9780073401331 38

## Solution for problem 7E Chapter 4.7

Statistics for Engineers and Scientists | 4th Edition

• Textbook Solutions
• 2901 Step-by-step solutions solved by professors and subject experts
• Get 24/7 help from StudySoup virtual teaching assistants

Statistics for Engineers and Scientists | 4th Edition

4 5 1 424 Reviews
20
0
Problem 7E

Problem 7E

A certain type of component can be purchased new or used. Fifty percent of all new components last more than five years, but only 30% of used components last more than five years. Is it possible that the lifetimes of new components are exponentially distributed? Explain.

Step-by-Step Solution:

Solution

Step 1 of 1

No, The lifetime of new components are not exponentially distributed

The probability of new components last more than 5 years should be equal to the probability of used components last more than 5 years

Because of lack of memory property

Step 2 of 1

##### ISBN: 9780073401331

Since the solution to 7E from 4.7 chapter was answered, more than 387 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 7E from chapter: 4.7 was answered by , our top Statistics solution expert on 06/28/17, 11:15AM. This full solution covers the following key subjects: new, components, used, years, lifetimes. This expansive textbook survival guide covers 153 chapters, and 2440 solutions. The answer to “A certain type of component can be purchased new or used. Fifty percent of all new components last more than five years, but only 30% of used components last more than five years. Is it possible that the lifetimes of new components are exponentially distributed? Explain.” is broken down into a number of easy to follow steps, and 46 words. This textbook survival guide was created for the textbook: Statistics for Engineers and Scientists , edition: 4. Statistics for Engineers and Scientists was written by and is associated to the ISBN: 9780073401331.

#### Related chapters

Unlock Textbook Solution