Suppose a computer chip manufacturer rejects 4% of the chips produced because they fail presale testing.If 135 chips are picked at random,is it appropriate to use a Normal model to approximate the distribution of the number of bad chips?
A)No; Normal model cannot be used to approximate the distribution because np

Question

Suppose a computer chip manufacturer rejects 4% of the chips produced because they fail presale testing.If 135 chips are picked at random,is it appropriate to use a Normal model to approximate the distribution of the number of bad chips?
A)No; Normal model cannot be used to approximate the distribution because np < 10.
B)Yes; Normal model with μ = 129.6 and σ = 2.28 can be used to approximate the distribution.
C)Yes; Normal model with μ = 5.4 and σ = 2.28 can be used to approximate the distribution.
D)No; Normal model cannot be used to approximate the distribution because nq < 10.
E)Yes; Normal model with μ = 5.4 and σ = 5.18 can be used to approximate the distribution.

Quizplus · Accepted Answer

The Answer of Suppose a computer chip manufacturer rejects 4% of the chips produced because they fail presale testing.If 135 chips are picked at random,is it appropriate to use a Normal model to approximate the distribution of the number of bad chips?
A)No; Normal model cannot be used to approximate the distribution because np < 10.
B)Yes; Normal model with μ = 129.6 and σ = 2.28 can be used to approximate the distribution.
C)Yes; Normal model with μ = 5.4 and σ = 2.28 can be used to approximate the distribution.
D)No; Normal model cannot be used to approximate the distribution because nq < 10.
E)Yes; Normal model with μ = 5.4 and σ = 5.18 can be used to approximate the distribution.

Suppose a Computer Chip Manufacturer Rejects 4% of the Chips