Answer:
(a) =210
(b) = 0.11
Step-by-step explanation:
Sampling distribution of the mean = 50 × 6 × 0.7= 210
Now to get the null divide 0.7 by 6
This gives 0.11
Answer:
The inequality 2x - 6 ≥ 6(x - 2) + 8 which is represented by the number line above shows that the variable x takes on values that lie on the left-hand side of the number line value x = -1/2 and includes the point x = -1/2.
Step-by-step explanation:
Hope this helps!
Answer:
x = 3
Step-by-step explanation:
Answer:
Ehhh
Step-by-step explanation:
<span>Defective rate can be expected
to keep an eye on a Poisson distribution. Mean is equal to 800(0.02) = 16,
Variance is 16, and so standard deviation is 4.
X = 800(0.04) = 32, Using normal approximation of the Poisson distribution Z1 =
(32-16)/4 = 4.
P(greater than 4%) = P(Z>4) = 1 – 0.999968 = 0.000032, which implies that
having such a defective rate is extremely unlikely.</span>
<span>If the defective rate in the
random sample is 4 percent then it is very likely that the assembly line
produces more than 2% defective rate now.</span>
