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A laboratory engineer explains an experiment in which the manufacturer is interested in the tensile strength of a synthetic fiber. Strength is said to be proportional to the amount of cotton in the fiber. Five levels of cotton are chosen, and five replicates are performed in random order, yielding the results shown below: Observations Cotton (%) 1 2 3 4 15 7 7 15 11 9 20 12 17 12 18 18 25 14 18 18 19 19 30 19 25 22 19 23 35 7 10 11 15 11 Does the proportion of cotton have an effect on breaking strength? At alpha 0.05, test the hypothesis. a. F critical b. F stat is c. Decision is to the null hypothesis. (accept or reject)

A laboratory engineer explains an experiment in which the manufacturer is interested in the tensile strength of a synthetic fiber. Strength is said to be proportional to the amount of cotton in the fiber. Five levels of cotton are chosen, and five replicates are performed in random order, yielding the results shown below: Observations Cotton (%) 1 2 3 4 15 7 7 15 11 9 20 12 17 12 18 18 25 14 18 18 19 19 30 19 25 22 19 23 35 7 10 11 15 11 Does the proportion of cotton have an effect on breaking strength? At alpha 0.05, test the hypothesis. a. F critical b. F stat is c. Decision is to the null hypothesis. (accept or reject)

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 10CYU
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A laboratory engineer explains an experiment in which the manufacturer is interested in the tensile strength of a synthetic fiber. Strength is said to be proportional to the amount of cotton in the fiber. Five levels of cotton are chosen, and five replicates are performed in random order, yielding the results shown below: Observations Cotton (%) 1 3 4 15 7 7 15 11 9. 20 12 17 12 18 18 25 14 18 18 19 19 30 19 25 22 19 23 35 7 10 11 15 11 Does the proportion of cotton have an effect on breaking strength? At alpha 0.05, test the hypothesis. a. F critical b. F stat is c. Decision is to the null hypothesis. (accept or reject)
Transcribed Image Text:A laboratory engineer explains an experiment in which the manufacturer is interested in the tensile strength of a synthetic fiber. Strength is said to be proportional to the amount of cotton in the fiber. Five levels of cotton are chosen, and five replicates are performed in random order, yielding the results shown below: Observations Cotton (%) 1 3 4 15 7 7 15 11 9. 20 12 17 12 18 18 25 14 18 18 19 19 30 19 25 22 19 23 35 7 10 11 15 11 Does the proportion of cotton have an effect on breaking strength? At alpha 0.05, test the hypothesis. a. F critical b. F stat is c. Decision is to the null hypothesis. (accept or reject)
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