sample mean 92.0 94.0 sample standard 2.0 1.5 deviation sample size 12 10 Determine the computed p-value to test whether to reject the null hypothesis of equal variance of the average yield from using catalyst A and B at a 5 % level of significance.
sample mean 92.0 94.0 sample standard 2.0 1.5 deviation sample size 12 10 Determine the computed p-value to test whether to reject the null hypothesis of equal variance of the average yield from using catalyst A and B at a 5 % level of significance.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Question
28.
Transcribed Image Text:Two catalysts are being analyzed to determine how they affect the
average yield of the chemical process. The higher the yield in
percentage, the better the catalyst is. Catalyst A is a commercial
catalyst that is currently being used. Catalyst B is developed by our
research group based on a geopolymer material. The following
table is the summarized result from the test runs in the pilot plant.
Based on the normal probability plot, it is valid to assume normal
distribution from these data.
A
sample mean
92.0
94.0
sample standard
2.0
1.5
deviation
sample size
12
10
Determine the computed p-value to test whether to reject the nul
hypothesis of equal variance of the average yield from using
catalyst A and B at a 5 % level of significance.
0.28
О 1.28
O 0.64
O 0.20
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