2. Two catalysts may be used in a batch chemical process. Twelve batches were prepared usingcatalyst 1, resulting in an average yield of 86 and a sample standard deviation of 3. Fifteenbatches were prepared using catalyst 2, and they resulted in an average yield of 89 with astandard deviation of 2. Assume that yield measurements are approximately normally distributedwith the same standard deviation.Is there evidence to support a claim that catalyst 2 produces a higher mean yield than catalyst 1?Use alpha 0.01.Let the yield measurements from catalyst 1 represent population 1.Let the yield measurements from catalyst 2 represent population 2.A. The appropriate alternative hypothesis for this test is:_B. The critical value is4.00.)(Write your answer precise to 3 decimal places, e.g. 2.45, 3.01,C. The pooled sample variance is equal toC. The test statistic isD. The p-value is equal toE. The correct decision is to (reject or not reject) Ho.F. The correct conclusion is that there is (significant or insignificant) sample evidence to showthat the mean yield produced by catalyst 2 is (higher or not higher) than the mean yieldproduced by catalyst 1.

Step 1:(1)H0: Null Hypothesis: μ1−μ2≥0 0 (Catalyst 2 does not produce a higher mean yield that…

Answered: 2. Two catalysts may be used in a batch…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Two catalysts may be used in a batch chemical process. Twelve batches were prepared using catalyst 1, resulting in an average yield of 86 and a sample standard deviation of 3. Fifteen batches were prepared using catalyst 2, and they resulted in an average yield of 89 with a standard deviation of 2. Assume that yield measurements are approximately normally distributed with the same standard deviation. Is there evidence to support the claim that catalyst 2 produces higher mean yield than catalyst 1? Use a=0.01. What is the appropriate hypothesis test? O Right-tailed test O Middle-tailed test Left-tailed test O Two-tailed test
Two catalysts may be used in a batch chemical process. Twelve batches were prepared using catalyst 1, resulting in an average yield of 86 and a sample standard deviation of 3. Fifteen batches were prepared using catalyst 2, and they resulted in an average yield of 89 with a standard deviation of 2. Assume that yield measurements are approximately normally distributed with the same standard deviation. Is there evidence to support the claim that catalyst 2 produces higher mean yield than catalyst 1? Use a=0.01. What is the test statistic? Answer rounded-off to 2 decimal places
Two catalysts may be used in a batch chemical process. Twelve batches were prepared using catalyst 1, resulting in an average yield of 86 and a sample standard deviation of 3. Fifteen batches were prepared using catalyst 2, and they resulted in an average yield of 89 with a standard deviation of 2. Assume that yield measurements are approximately normally distributed with the same standard deviation.Is there evidence to support the claim that catalyst 2 produces higher mean yield than catalyst 1? Use α=0.01. What is the appropriate hypothesis test? a Right-tailed test b Middle-tailed test c Two-tailed test d Left-tailed test
The melting points of two alloys used in formulating solder were investigated by melting 12 samples of each material. The sample mean and standard deviation for alloy 1 was x1 = 420°F and sf=6°F, and for alloy 2, they were x2= 426°F and s = 5°F. Do the sample data support the claim that both alloys have melting point with different mean? Use a = 0.05 and assume that both populations are normally distributed and their standard deviations are not equal. %3D at of estion 1. Determine the degrees of freedom (Round your answer to the nearest integer). 024 ONone of the choices are correct 020 022 26 2. What are the appropriate null and alternative hypotheses?
Two catalysts may be used in a batch chemical process. 12 batches were prepared using catalyst 1, resulting in an average yield of 86 and a sample standard deviation of 3. 15 batches were prepared using catalyst 2, and they resulted in an average yield of 89 with a standard deviation of 2. Assume that yield measurements are approximately normally distributed with the same standard deviation. Is there evidence to support a claim that catalyst 2 produces a higher mean yield than catalyst 1? Use alpha 0.01. • Let the yield measurements from catalyst 1 represent population 1. Let the yield measurements from catalyst 2 represent population 2. a. The appropriate alternative hypothesis for this test is uj – uz. b. What is the critical value? (Write in 3 decimal places) c. What is the pooled sample variance? (Write in 1 decimal value) d. What is the test statistic? (Write in 2 decimal places) e. What is the p-value? (Write in 4 decimal places) f. Should we reject or not reject H0? g. Is there…
Two catalysts may be used in a batch chemical process. 12 batches were prepared using catalyst 1, resulting in an average yield of 86 and a sample standard deviation of 3. 15 batches were prepared using catalyst 2, and they resulted in an average yield of 89 with a standard deviation of 2. Assume that yield measurements are approximately normally distributed with the same standard deviation. • Is there evidence to support a claim that catalyst 2 produces a higher mean yield than catalyst 1? Use alpha 0.01. • Let the yield measurements from catalyst 1 represent population 1. Let the yield measurements from catalyst 2 represent population 2. a. What is the pooled sample variance? (Write in 1 decimal place) b. What is the p-value? (Write in 4 decimal places) c. Should we reject or not reject H0? d. Is there (significant or insignificant) sample evidence to show that the mean yield produced by catalyst 2 is (higher or not higher) than the mean yield produced by catalyst 1?

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