3- The diameters of steel shafts produced by a certain manufacturing process should have a mean diameter of 0.255 inches

Business, Finance, Economics, Accounting, Operations Management, Computer Science, Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Algebra, Precalculus, Statistics and Probabilty, Advanced Math, Physics, Chemistry, Biology, Nursing, Psychology, Certifications, Tests, Prep, and more.
Post Reply
answerhappygod
Site Admin
Posts: 899603
Joined: Mon Aug 02, 2021 8:13 am

3- The diameters of steel shafts produced by a certain manufacturing process should have a mean diameter of 0.255 inches

Post by answerhappygod »

3 The Diameters Of Steel Shafts Produced By A Certain Manufacturing Process Should Have A Mean Diameter Of 0 255 Inches 1
3 The Diameters Of Steel Shafts Produced By A Certain Manufacturing Process Should Have A Mean Diameter Of 0 255 Inches 1 (32.45 KiB) Viewed 74 times
3- The diameters of steel shafts produced by a certain manufacturing process should have a mean diameter of 0.255 inches. The diameter is known to follow normal distribution and have a standard deviation of a=0.0001 inch. A random sample of 12 shafts has an average diameter of 0.2545 inches. a. Set up the appropriate hypothesis on the mean . b. Which distribution should be used to test these hypotheses? Why? c. Based on following Minitab Output, what are your condition for a=0.05? Test Static P N Mean SE Mean 95%O 20 0.254500 0.000029 (0.254443,0.254557) -17.32 0.000
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!
Top
Post Reply

Return to “Archived Questions & Answers”