Answer:
A) 3.996 inches
B) 0.01
C) option B
Step-by-step explanation:
Note: The diameter of the lid is between : 3.95 and 4.05
A) calculate the supplier set mean diameter
std = 0.02 inch
P( x < 3.95 ) = 1% = 0.01
= P ( Z < 
) = P ( Z < -2.3263 ) = 0.01
therefore :
= -2.3263
hence :<em> u </em>= 3.996 inches ( mean diameter )
B) At mean diameter = 3.98 calculate the value of std
P ( X < 3.95 ) = 0.01
= P ( Z < 
) = P ( Z < -2.3263 ) = 0.01
therefore
= -2.3263
hence std = 0.01 inch
C) option B is preferable because its mean diameter is smaller and the percent of lids too large to fit is considered more carefully using option B
Answer:
6 hours
Step-by-step explanation:
2x6=12
Answer:
0.6667 or 66.67%
Step-by-step explanation:
Since the waiting time is normally distributed between 0 and 6 minutes, for any time 'x' within the interval, the probability the waiting time is longer than 'x' is given by:
For x = 2 minutes:
The probability that she will have to wait more than two minutes 0.6667 or 66.67%
Let the break even point in units be x,
57x = 18x + 7800
57x - 18x = 7800
39x = 7800
x = 7800/39 = 200
Thus break-even point in units is 200 units.
The break-even point in dollars is 57 x 200 = $11,400
Break-even point as a percent of capacity is 200 / 500 x 100 = 40%
c.) 57x = 18x + 7020
39x = 7020
x = 7020 / 39 = 180
Thus when fixed cost is reduced to $7020, the break-even point is $180.
78x = 18x + 7800
78x - 18x = 7800
60x = 7800
x = 130
Thus, when sellingprice is increased to $78 the break-even point in dollars is 78 x 130 = $10,140
Answer:
Step-by-step explanation:
