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Two chemical companies can supply a raw material. The concentration of a particular element in this material is important. The mean concentration for both suppliers is the same, but you suspect that the variability in concentration may điffer for the two companies. The standard deviation of concentration in a random sample of n, = 10 batches produced by company 1 is s, = 4.7 grams per liter, and for company 2, a random sample of n, = 16 batches yield s, = 5.8 grams per liter. Is there sufficient evidence to conclude that the two populations variances differ? Use a = 0.05. O a. None among the choices Ob. Because 0.321 < 0.657 < 3.77, fail to reject the null hypothesis O. Because 0.265 < 0.657 < 3.12, fail to reject the null hypothesis O d. Because 0.386 < 0.657 < 3.01, fail to reject the null hypothesis

Two chemical companies can supply a raw material. The concentration of a particular element in this material is important. The mean concentration for both suppliers is the same, but you suspect that the variability in concentration may điffer for the two companies. The standard deviation of concentration in a random sample of n, = 10 batches produced by company 1 is s, = 4.7 grams per liter, and for company 2, a random sample of n, = 16 batches yield s, = 5.8 grams per liter. Is there sufficient evidence to conclude that the two populations variances differ? Use a = 0.05. O a. None among the choices Ob. Because 0.321 < 0.657 < 3.77, fail to reject the null hypothesis O. Because 0.265 < 0.657 < 3.12, fail to reject the null hypothesis O d. Because 0.386 < 0.657 < 3.01, fail to reject the null hypothesis

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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Two chemical companies can supply a raw material. The concentration of a particular element in this material is important. The mean concentration for both suppliers is the same, but you suspect that the variability in concentration may differ for the two companies. The standard deviation of concentration in a random sample of n = 10 batches produced by company 1 is s, = 4.7 grams per liter, and for company 2, a random sample of n, = 16 batches yield s2 = 5.8 grams per liter. Is there sufficient evidence to conclude that the two populations variances differ? Use a = 0.05. a. None among the choices b. Because 0.321 < 0.657 < 3.77, fail to reject the null hypothesis O. Because 0.265 < 0.657 < 3.12, fail to reject the null hypothesis d. Because 0.386 < 0.657 < 3.01, fail to reject the null hypothesis
Transcribed Image Text:Two chemical companies can supply a raw material. The concentration of a particular element in this material is important. The mean concentration for both suppliers is the same, but you suspect that the variability in concentration may differ for the two companies. The standard deviation of concentration in a random sample of n = 10 batches produced by company 1 is s, = 4.7 grams per liter, and for company 2, a random sample of n, = 16 batches yield s2 = 5.8 grams per liter. Is there sufficient evidence to conclude that the two populations variances differ? Use a = 0.05. a. None among the choices b. Because 0.321 < 0.657 < 3.77, fail to reject the null hypothesis O. Because 0.265 < 0.657 < 3.12, fail to reject the null hypothesis d. Because 0.386 < 0.657 < 3.01, fail to reject the null hypothesis
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