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Author Question: A retailer of electronic equipment received six VCRs from the manufacturer. Three of the VCRs were ... (Read 1361 times)

mckennatimberlake

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on: Jun 24, 2018
A retailer of electronic equipment received six VCRs from the manufacturer. Three of the VCRs were damaged in the shipment. The retailer sold two VCRs to two 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 VCRs?
  d. What is the probability that one of the two customers received a defective VCR?

Question 2

In practice, the most frequently encountered hypothesis test about a population variance is a
 a. one-tailed test, with rejection region in the lower tail.
  b. one-tailed test, with rejection region in the upper tail.
  c. two-tailed test, with equal-size rejection regions.
 d. two-tailed test, with unequal-size rejection regions.


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joneynes

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

a. No, in a binomial experiment, trials are independent of each other.
b. Hypergeometric probability distribution
c. 0.2
d. 0.6

Answer to Question 2

b


mckennatimberlake

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Reply 2 on: Jun 24, 2018
:D TYSM

smrtceo

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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