33+27=60. 9/60= .15 there's not much more to say.
16 because if she wants to do it in a 8 hour work day she’d make $72 and make 16 deliveries and have two extra dollars
B is true; pi= ~3.14. 3+4 is equal to 7, so because pi is greater than 3, pi+4>7
Answer:
First one is x(7-4)
Second one is x(3)
Third one is 3x
Step-by-step explanation: Plz mark brainliest
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