A company that translates books between various languages is currently testing a computer-based translation service. The founder of the company expects the computer program to make some errors, but then so do human translators. The computer error rate is supposed to be an average of 3 per 400 words of translation. Suppose the company founder randomly selects a 2,000-word passage. Assume that the Poisson distribution applies and that the computer error rate is actually 3 errors per 400 words. Complete parts a through d. a. Determine the probability that no errors will be found. The probability is (Round to four decimal places as needed.) b. Calculate the probability that more than 29 errors will be found. The probability is (Round to four decimal places as needed.) c. Find the probability that fewer than 15 errors will be found. The probability is (Round to four decimal places as needed.) d. If 30 errors are found in the 2,000-word passage, what would you conclude about the computer company's claim? Why? The claim is probably because there would be a very probability of getting at least 30 errors in a 2,000-word passage.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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part c and d

A company that translates books between various languages is currently testing a computer-based translation service. The founder of the company expects the
computer program to make some errors, but then so do human translators. The computer error rate is supposed to be an average of 3 per 400 words of
translation. Suppose the company founder randomly selects a 2,000-word passage. Assume that the Poisson distribution applies and that the computer error
rate is actually 3 erors per 400 words. Complete parts a through d.
a. Determine the probability that no errors will be found.
The probability is
(Round to four decimal places as needed.)
b. Calculate the probability that more than 29 errors will be found.
The probability is
(Round to four decimal places as needed.)
c. Find the probability that fewer than 15 errors will be found.
The probability is (Round to four decimal places as needed.)
d. If 30 errors are found in the 2,000-word passage, what would you conclude about the computer company's claim? Why?
The claim is probably
because there would be a very
probability of getting at least 30 errors in a 2,000-word passage.
Transcribed Image Text:A company that translates books between various languages is currently testing a computer-based translation service. The founder of the company expects the computer program to make some errors, but then so do human translators. The computer error rate is supposed to be an average of 3 per 400 words of translation. Suppose the company founder randomly selects a 2,000-word passage. Assume that the Poisson distribution applies and that the computer error rate is actually 3 erors per 400 words. Complete parts a through d. a. Determine the probability that no errors will be found. The probability is (Round to four decimal places as needed.) b. Calculate the probability that more than 29 errors will be found. The probability is (Round to four decimal places as needed.) c. Find the probability that fewer than 15 errors will be found. The probability is (Round to four decimal places as needed.) d. If 30 errors are found in the 2,000-word passage, what would you conclude about the computer company's claim? Why? The claim is probably because there would be a very probability of getting at least 30 errors in a 2,000-word passage.
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