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Author Question: Whenever the population has a normal probability distribution, the sampling distribution of is a ... (Read 107 times)

penza

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on: Jun 24, 2018
Whenever the population has a normal probability distribution, the sampling distribution of is a normal probability distribution for _____.
 a. only large sample sizes
  b. only small sample sizes
  c. any sample size
  d. only samples of size 30 or greater

Question 2

A retailer of electronic equipment received 6 HDTVs from the manufacturer. Three of the HDTVs were damaged in the shipment. The retailer sold 2 HDTVs to 2 customers.
 a. Can a binomial formula be used for the solution of the above problem?
  b. What kind of probability distribution does the above satisfy, and is there a function for solving such problems?
  c. What is the probability that both customers received damaged HDTVs?
  d. What is the probability that 1 of the 2 customers received a defective HDTV?


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kthug

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Reply #1 on: Jun 24, 2018
Answer to Question 1

c

Answer to Question 2

a. No, in a binomial experiment, trials are independent of each other.
b. Hypergeometric probability distribution
c. .2
d. .6


penza

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Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

cassie_ragen

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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