25% reduced
you take 337.50 divide by 450 which gives you .75
so you take 100% minus 75% and you get 25%

you can check the work by taking 450 time .25 which gives you 112.5 . and subtract that from 450 you'll end up with 337.50

8 0

3 years ago

Process control is nothing more or less than monitoring quality as the work is being performed. Perhaps the most widely adopted

ella [17]

Answer:

a. Grand Mean = 2.799

b. Standard Deviation = 0.01387

c. Standard Error = 0.0016

d. The range with a Z score of 3 = (2.75739, 2.84061)

Step-by-step explanation:

a. Grand mean :

Given that

Sum of 80 values = 223.91

Total observation = 80

Grand mean = 223.91/80 = 2.799

b. With the excel command "STDEV[range of cells]", we get the standard deviation as = 0.01387

c. Standard error = Standard deviation / root of n

$= 0.01387/\sqrt{80}\\ = 0.0016$

d. The range with a Z score of 3 :

lower limit = mean - (3 * SD) = 2.799 - (0.04161) = 2.75739

upper limit = mean + (3 * SD) = 2.799 + (0.04161) = 2.84061

8 0

3 years ago

Given y = 2x + 4, what is the new y-intercept if the y-intercept is decreased by 5? A) −1 B) −3 C) −4 D) −5

elena-14-01-66 [18.8K]

The new y-intercept would be A)-1 because of the 4-5 = -1

3 0

3 years ago

What is 52cm as a fraction of 90cm? (as a simplified fraction)

katrin2010 [14]

Answer:

$\frac{26}{45}$ and $\frac{3}{11}$

Step-by-step explanation:

(a)

Expressing as a fraction

$\frac{52}{90}$ ( divide numerator/ denominator by 2 )

= $\frac{26}{45}$ ← in simplest form

(b)

Expressing as a fraction

$\frac{30}{110}$ ( divide numerator/ denominator by 10 )

= $\frac{3}{11}$ ← in simplest form

5 0

3 years ago