An article in Electronic Components and Technology Conference (Vol. 52, 2001, pp 1167-1171) describes a study comparing single versus dual spindle saw processes copper metallized wafers. A total of nsingle = 10 devices of the single saw type and a total of ndouble = 12 devices of the double saw type were measured for the width of the backside chipouts. The sample mean chipouts for the single saw type were sin = 68.9 with a sample standard deviation of sgingle = 7.3. The sample mean chipouts the double saw type were double = 49.0 with a sample standard deviation of sdoubl 8.7. Assume that both populations are normally distributed and have the same variance %3D Calculate the upper bound of a 95% two-sided confidence interval on the mean difference in spindle saw process where the difference is "single - double". Enter yo answer to two decimal places. Hint: The formula for a confidence interval using the pooled variance (assumes equ variances) is (1 - T2) ±ta/2,n +ng-2 * Sp * V1/n1 +1/n2
An article in Electronic Components and Technology Conference (Vol. 52, 2001, pp 1167-1171) describes a study comparing single versus dual spindle saw processes copper metallized wafers. A total of nsingle = 10 devices of the single saw type and a total of ndouble = 12 devices of the double saw type were measured for the width of the backside chipouts. The sample mean chipouts for the single saw type were sin = 68.9 with a sample standard deviation of sgingle = 7.3. The sample mean chipouts the double saw type were double = 49.0 with a sample standard deviation of sdoubl 8.7. Assume that both populations are normally distributed and have the same variance %3D Calculate the upper bound of a 95% two-sided confidence interval on the mean difference in spindle saw process where the difference is "single - double". Enter yo answer to two decimal places. Hint: The formula for a confidence interval using the pooled variance (assumes equ variances) is (1 - T2) ±ta/2,n +ng-2 * Sp * V1/n1 +1/n2
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![An article in the Electronic Components and Technology Conference (Vol. 52, 2001, pp. 1167–1171) describes a study comparing single versus dual spindle saw processes on copper metallized wafers. A total of \( n_{\text{single}} = 10 \) devices of the single saw type and a total of \( n_{\text{double}} = 12 \) devices of the double saw type were measured for the width of the backside chipouts. The sample mean chipouts for the single saw type were \( \bar{x}_{\text{single}} = 68.9 \) with a sample standard deviation of \( s_{\text{single}} = 7.3 \). The sample mean chipouts for the double saw type were \( \bar{x}_{\text{double}} = 49.0 \) with a sample standard deviation of \( s_{\text{double}} = 8.7 \).
**Assume that both populations are normally distributed and have the same variance.** Calculate the upper bound of a 95% two-sided confidence interval on the mean difference in spindle saw process where the difference is "single - double". Enter your answer to two decimal places.
**Hint:** The formula for a confidence interval using the pooled variance (assumes equal variances) is
\[
(\bar{x}_1 - \bar{x}_2) \pm t_{\alpha/2, n_1 + n_2 - 2} \times s_p \times \sqrt{\frac{1}{n_1} + \frac{1}{n_2}}
\]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff8b48535-184f-4977-af2d-d816dbce40fd%2Fac71df52-15d6-4ee8-a8e4-f2f61eaec86e%2Fjkxzxq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:An article in the Electronic Components and Technology Conference (Vol. 52, 2001, pp. 1167–1171) describes a study comparing single versus dual spindle saw processes on copper metallized wafers. A total of \( n_{\text{single}} = 10 \) devices of the single saw type and a total of \( n_{\text{double}} = 12 \) devices of the double saw type were measured for the width of the backside chipouts. The sample mean chipouts for the single saw type were \( \bar{x}_{\text{single}} = 68.9 \) with a sample standard deviation of \( s_{\text{single}} = 7.3 \). The sample mean chipouts for the double saw type were \( \bar{x}_{\text{double}} = 49.0 \) with a sample standard deviation of \( s_{\text{double}} = 8.7 \).
**Assume that both populations are normally distributed and have the same variance.** Calculate the upper bound of a 95% two-sided confidence interval on the mean difference in spindle saw process where the difference is "single - double". Enter your answer to two decimal places.
**Hint:** The formula for a confidence interval using the pooled variance (assumes equal variances) is
\[
(\bar{x}_1 - \bar{x}_2) \pm t_{\alpha/2, n_1 + n_2 - 2} \times s_p \times \sqrt{\frac{1}{n_1} + \frac{1}{n_2}}
\]
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Recommended textbooks for you
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
![Elementary Statistics: Picturing the World (7th E…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
![Introduction to the Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman