Question

Suppose we have a binomial experiment in which success is defined to be a particular quality...

Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us.

(a) Suppose n = 30 and p = 0.18. Can we approximate by a normal distribution? Why? (Use 2 decimal places.)

np =
nq =


---Select--- Yes No ,   ---Select--- cannot can be approximated by a normal random variable because  ---Select--- nq does not exceed np does not exceed both np and nq exceed nq exceeds np exceeds np and nq do not exceed  .

What are the values of μ and σ? (Use 3 decimal places.)

μ =
σ =


(b) Suppose n = 25 and p = 0.15. Can we safely approximate by a normal distribution? Why or why not?
---Select--- Yes No ,   ---Select--- can cannot be approximated by a normal random variable because  ---Select--- both np and nq exceed np does not exceed nq does not exceed np exceeds np and nq do not exceed nq exceeds  .

(c) Suppose n = 58 and p = 0.26. Can we approximate by a normal distribution? Why? (Use 2 decimal places.)

np =
nq =


---Select--- Yes No ,   ---Select--- can cannot be approximated by a normal random variable because  ---Select--- np and nq do not exceed np exceeds np does not exceed both np and nq exceed nq does not exceed nq exceeds

What are the values of μ and σ? (Use 3 decimal places.)

μ =
σ =

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