# Question: An experienced order taker at the L L Bean call center

An experienced order taker at the L.L. Bean call center has a .003 chance of error on each keystroke (i.e., 5 .003). In 500 keystrokes, find the approximate probability of

(a) At least two errors and

(b) Fewer than four errors.

(c) Is the Poisson approximation justified?

(a) At least two errors and

(b) Fewer than four errors.

(c) Is the Poisson approximation justified?

## Relevant Questions

The probability of a manufacturing defect in an aluminum beverage can is .00002. If 100,000 cans are produced, find the approximate probability of (a) At least one defective can and (b) Two or more defective cans. (c) Is the ...ABC Warehouse has eight refrigerators in stock. Two are side-by-side models and six are top-freezer models. (a) Using Excel, calculate the entire hypergeometric probability distribution for the number of top-freezer models ...A law enforcement agency processes 500 background checks for rearms purchasers. Fifty applicants are convicted felons. Through a clerk's error, 10 applicants are approved without checking for felony convictions. (a) Justify ...The mean January temperature in Fort Collins, CO, is 37.1o F with a standard deviation of 10.3o F. Express these Fahrenheit parameters in degrees Celsius using the transformation C = 5/9F – 17.78. In a certain Kentucky Fried Chicken franchise, half of the customers typically request "crispy" instead of "original." (a) What is the probability that none of the next four customers will request "crispy"? (b) At least ...Post your question