It was determined that the percentage of a's in the English language in the 1800s was 9%. A random sample of 1000 letters from a current newspaper contained 66 a's. Test the hypothesis that the proportion of a's has changed in modern times, using the 0.05 level of significance. Treat the newspaper as a random sample of all letters used.
It was determined that the percentage of a's in the English language in the 1800s was 9%. A random sample of 1000 letters from a current newspaper contained 66 a's. Test the hypothesis that the proportion of a's has changed in modern times, using the 0.05 level of significance. Treat the newspaper as a random sample of all letters used.
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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It was determined that the percentage of a's in the English language in the 1800s was 9%. A random sample of 1000 letters from a current newspaper contained 66 a's. Test the hypothesis that the proportion of a's has changed in modern times, using the 0.05 level of significance. Treat the newspaper as a random sample of all letters used.
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