Let the random variable X represent the number of cars that are used for official business purposes on any given workday. The probability distribution for company A is 1 2 PA(X) 0.3 0.4 03 and for company B is 10 1 2 3 4 PB(x) 0.2 0.1 0.3 0.3 0.1 If daily records of car usage are examined on randomly selected 36 days from company A and 40 days from company B, find the probability that the difference between sample means of company A and B is greater than 0.6.
Let the random variable X represent the number of cars that are used for official business purposes on any given workday. The probability distribution for company A is 1 2 PA(X) 0.3 0.4 03 and for company B is 10 1 2 3 4 PB(x) 0.2 0.1 0.3 0.3 0.1 If daily records of car usage are examined on randomly selected 36 days from company A and 40 days from company B, find the probability that the difference between sample means of company A and B is greater than 0.6.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:Let the random variable X represent the number of cars that are used for official business purposes on any
given workday. The probability distribution for company A is
1
2
3
PA(X)
0.3
0.4
03
and for company B is
1
3
PB(x)
0.2
0.1
0.3
0.3
0.1
If daily records of car usage are examined on randomly selected 36 days from company A and 40 days from
company B, find the probability that the difference between sample means of company A and B is greater than 0.6.
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