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A purchasing agent obtained samples of 60 watt bulbs from two companies. He / She had the sample tested in his own laboratory for length of life with the following results: Samples from Length of life (in hours) Company A Company B 1700 and under 1900 10 3 1900 and under 2100 16 40 2100 and under 2300 20 12 2300 and under 2500 8 3 2500 and under 2700 6. 2 (i) Identify which company's bulbs are better in terms of average life? (ii) If prices of both types are the same, select which company's bulbs you will prefer to collect.

A purchasing agent obtained samples of 60 watt bulbs from two companies. He / She had the sample tested in his own laboratory for length of life with the following results: Samples from Length of life (in hours) Company A Company B 1700 and under 1900 10 3 1900 and under 2100 16 40 2100 and under 2300 20 12 2300 and under 2500 8 3 2500 and under 2700 6. 2 (i) Identify which company's bulbs are better in terms of average life? (ii) If prices of both types are the same, select which company's bulbs you will prefer to collect.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 31PPS
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A purchasing agent obtained samples of 60 watt bulbs from two companies. He / She had the sample tested in his own laboratory for length of life with the following results: Samples from Length of life (in hours) Company A Company B 1700 and under 1900 10 3 1900 and under 2100 16 40 2100 and under 2300 20 12 2300 and under 2500 8. 3 2500 and under 2700 6. (i) Identify which company's bulbs are better in terms of average life? (ii) If prices of both types are the same, select which company’s bulbs you will prefer to collect.
Transcribed Image Text:A purchasing agent obtained samples of 60 watt bulbs from two companies. He / She had the sample tested in his own laboratory for length of life with the following results: Samples from Length of life (in hours) Company A Company B 1700 and under 1900 10 3 1900 and under 2100 16 40 2100 and under 2300 20 12 2300 and under 2500 8. 3 2500 and under 2700 6. (i) Identify which company's bulbs are better in terms of average life? (ii) If prices of both types are the same, select which company’s bulbs you will prefer to collect.
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