An employee claims that 20% of the email she receives is personal, 60% is work related, and 20% is spam. The high level of spam she is receiving is frustrating, so she creates some new filters. She then selects a random sample of 50 emails over the next several weeks. She determines that she received 10 personal emails, 38 work-related emails, and 2 spam emails. She would like to know if the distribution of emails she receives has changed. What is the value of the chi-square test statistic and P-value? Find the chi-square table here. χ2 = 8.53, P-value is between 0.01 and 0.02 χ2 = 8.53, P-value is between 0.025 and 0.05 χ2 = 33.68, P-value is less than 0.0005 χ2 = 33.68, P-value is greater than 0.25

An employee claims that 20% of the email she receives is personal, 60% is work related, and 20% is spam. The high level of spam she is receiving is frustrating, so she creates some new filters. She then selects a random sample of 50 emails over the next several weeks. She determines that she received 10 personal emails, 38 work-related emails, and 2 spam emails. She would like to know if the distribution of emails she receives has changed. What is the value of the chi-square test statistic and P-value? Find the chi-square table here. χ2 = 8.53, P-value is between 0.01 and 0.02 χ2 = 8.53, P-value is between 0.025 and 0.05 χ2 = 33.68, P-value is less than 0.0005 χ2 = 33.68, P-value is greater than 0.25

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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