×
Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 2 - Problem 3se
Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 2 - Problem 3se

×

# Silicon wafers are used in the manufacture of integrated

ISBN: 9780073401331 38

## Solution for problem 3SE Chapter 2

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 1 311 Reviews
10
2
Problem 3SE

Silicon wafers are used in the manufacture of integrated circuits. Of the wafers manufactured by a certain process, 10% have resistances below specification and 5% have resistances above specification.

a. What is the probability that the resistance of a randomly chosen wafer does not meet the specification?

b. If a randomly chosen wafer has a resistance that does not meet the specification, what is the probability that it is too low?

Step-by-Step Solution:

Solution :

Given the wafer manufactured by a certain process,it has 10% below resistances and

5 % above resistances.

Our goal is to find

a). What is the probability that the resistance of a randomly chosen wafer does not meet the specification?

b). What is the probability that it is too low?

Step 1 of 2 :

a).

Now we have to find the probability that the resistance of a randomly chosen wafer does not meet the specification.

Here let A and B be the event.

A denote the event that the resistance is above specification is 10%

10/100 = 0.1 and

B denote the event that the resistance is below specification is 5%

5/100 = 0.05

Then,

P(wafer does not meet the specification) =

Therefore the probability of resistance of a randomly chosen wafer does not meet the specification is 0.145

Step 2 of 2

#### Related chapters

Unlock Textbook Solution