Question 2 Customers arrive at a bank according to a Poisson process at a rate of 100 per hour. 20% of them make only a deposit, 30% of them make only a withdrawal and the remaining 50% are there only to complain. Deposit amounts are distributed with a mean of 8,000 and a standard deviation of 1,000. Withdrawal amounts have a mean of 5,000 and a standard deviation of 2,000. The number of customers and their activities are independent. Using the Normal approximation, calculate the probability that in an 8 hour day the total withdrawal of the bank will exceed the total deposits.

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A: Let X : number of traffic accident per day X ~Poisson(λ = 2.19) E(X) = 2.19

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Q: QUESTION 5 The television picture tubes of manufacturer Sumsun have a mean lifetime of 7 years and a…

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Q: This cumulative review problem uses material from Chapters 3, 5, and 10. Recall that the Poisson…

A: The probability mass function of Poisson distribution is given as follows:

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Q: Chapter 08, Section 8.2, Problem 025 A city planner wants to estimate, with a 90% confidence level,…

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Q: QUESTION 14 The telephone company has the business objective of wanting to estimate the proportion…

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Q: Chapter 08, Section 8.3, Problem 041

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A:

Q: What is the critical value utilizing the level of significance and the numerator and denominator…

A: here given, s1  = 1.7 n1 = 20s2 = 1.2n2 = 25

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Q: Question 1 SlackBoard, a company producing a Learning Management System (LMS) would like to know…

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Q: Question 2.  The number of computer malfunctions per day is recorded for 600 as follows: # of…

A: As given,  The number of computer malfunctions per day is recorded for 600 as follows # of…

Q: QUESTION 3 A hardware store determined the current balances for a random sample of 100 customers…

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Q: QUESTION IV [6] A courier service company has found that their delivery time of parcels to clients…

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Q: This cumulative review problem uses material from Chapters 3, 5, and 10. Recall that the Poisson…

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.