Question

Two steel factories C and D are producing two types of reinforcement steel. The population mean and population standard deviation for yield stress of company's C steel pc = 800 MPa and c = 800 MPa. The population density function for the steel of factory D's products is an uniform distribution given as

0,

1

60

0.

X 770 MPa

770 MPa < x < 830 MPa

:> 830 MPa

f(x) =

A sample of ne = 100 products are taken from factory C. Let Xc denote the sample mean of their yielding stress. The numerical value of the probability P(790 < X < 810) equals to​

Answer 1

Answer:

A sample of ne = 100 products are taken from factory C. Let Xc denote the sample mean of their yielding stress. The numerical value of the probability P(790 < X < 810) equals to