Answer:
73
Step-by-step explanation:
90-17=x
x=73
Answer:
18243.906
Step-by-step explanation:
24325.208 / 4= 6081.302
meaning 1 hour is 6081.302
so 3 hours is 6081.302*3= 18243.906
Complete Question:
A manufacturer produces piston rings for an automobile engine. It is known that ring diameter is normally distributed with ? = 0.001 millimeters. A random sample of 15 rings has a mean diameter of \bar{X}= 74.106. Construct a 99% two-sided confidence interval on the true mean piston diameter and a 95% lower confidence bound on the true mean piston diameter.
(Round your answers to 3 decimal places.)
(Calculate the 99% two-sided confidence interval on the true mean piston diameter.
Answer:
99% true sided confidence Interval on the true mean Piston diameter = (74.105, 74.107)
Step-by-step explanation:
Check the attached file for the complete solution
Answer:
d
Step-by-step explanation: