jhick1447 jhick1447
  • 25-11-2022
  • Engineering
contestada

ex: an electrical firm manufactures light bulbs that have a life span that is approximately normally distributed. the population standard deviation is not known. a sample of 30 bulbs is found to have an average life span of 800 hours and a sample standard deviation of 45 hours.

Respuesta :

Otras preguntas

Find the area of the given circle. Round to the nearest tenth.11.0 ft^238.5 ft^242.8 ft^2113.0 ft^2
What effect did nationalist unrest have on the ottoman empire?
Donnie is solving the equation 2x2 = 27 + 3x with the quadratic formula.What values should he use for a, b, and c
which value is equivalent to 15.2% written as a decimal
What word means able to work properly while using less energy
The sum 9/10 and 1/32 is less than or greater than 1?
what to numbers multiply to -100 but add up to -21?
Find the area of the given circle. Round to the nearest tenth.11.0 ft^238.5 ft^242.8 ft^2113.0 ft^2
The numbers 7, 24, and c are a Pythagorean triple. What is the value of c?   A. 31
An airplane flew for 8 hours at an airspeed of x miles per hour (mph), and for 7 more hours at 325 mph. If the average airspeed for the entire flight was 350 mp