Please, if someone could please help me with this problem...
If np ≥ 5 and nq ≥ 5, estimate P (more than 4) with n = 11 and p = 0.7 by using the normal distribution as an approximation to the binomial distribution; if np

Question

Please, if someone could please help me with this problem...
If np ≥ 5 and nq ≥ 5, estimate P (more than 4) with n = 11 and p = 0.7 by using the normal distribution as an approximation to the binomial distribution; if np < 5 or nq < 5, then state that the normal approximation is not suitable.
a.	P(more than 4) =
b.	The normal distribution cannot be used.

amistre64 · Answer

as stated in your other post ....

is 3.3 >= 5 ?

anonymous · Answer

Yes

amistre64 · Answer

how so?

amistre64 · Answer

is 3.3 between 3 and 4 ?

if so, then how is 3 or 4 (or anything between them) bigger than 5 ?

anonymous · Answer

It is between but not bigger than 5

amistre64 · Answer

so 3.3 is less than 5

what do we do if np or nq is less than 5 ?

anonymous · Answer

That is where I am stuck..

amistre64 · Answer

then you might want to read the information all the way thru ....

anonymous · Answer

The normal distribution cannot be used.

amistre64 · Answer

yay!!

anonymous · Answer

:)