In an effort to make better use of its resources, the New York City Food Bank engaged in lean process improvement. This employee-driven kaizer effort resulted in a new method for packing meals for distribution to needy families. One goal of the process improvement effort was to reduce the variability in the meal-packing time. The following table summarizes information from a sample of data using the current method and the new method. Did the kaizen event successfully reduce the population variation? Use a = 0.10 and formulate the appropriate hypothesis test. Sample Size Sample Variance State the null and alternative hypotheses. Hoo-Select your answer - H₂o-Select your answer Calculate the value of the test statistic (to 2 decimals). Current Method The p-value is Select your answer - V Use Table 4 of Appendix B. What is your conclusion? Select your answer 721 = 26 $² = 23 New Method n₂ = 27 s² = 11 that the population variances has decreased due to the lean process improvement.

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In an effort to make better use of its resources, the New York City Food Bank engaged in lean process improvement. This employee-driven kaizen
effort resulted in a new method for packing meals for distribution to needy families. One goal of the process improvement effort was to reduce
the variability in the meal-packing time. The following table summarizes information from a sample of data using the current method and the
new method. Did the kaizen event successfully reduce the population variation? Use α = 0.10 and formulate the appropriate hypothesis test.
Sample Size
Sample Variance
State the null and alternative hypotheses.
Hoo-Select your answer - 02
H₂: of - Select your answer 02
Calculate the value of the test statistic (to 2 decimals).
Current Method
n1= 26
$ = 23
New Method
n₂ = 27
s² = 11
The p-value is Select your answer - V Use Table 4 of Appendix B.
What is your conclusion?
Select your answer that the population variances has decreased due to the lean process improvement.
115 TAT
Transcribed Image Text:In an effort to make better use of its resources, the New York City Food Bank engaged in lean process improvement. This employee-driven kaizen effort resulted in a new method for packing meals for distribution to needy families. One goal of the process improvement effort was to reduce the variability in the meal-packing time. The following table summarizes information from a sample of data using the current method and the new method. Did the kaizen event successfully reduce the population variation? Use α = 0.10 and formulate the appropriate hypothesis test. Sample Size Sample Variance State the null and alternative hypotheses. Hoo-Select your answer - 02 H₂: of - Select your answer 02 Calculate the value of the test statistic (to 2 decimals). Current Method n1= 26 $ = 23 New Method n₂ = 27 s² = 11 The p-value is Select your answer - V Use Table 4 of Appendix B. What is your conclusion? Select your answer that the population variances has decreased due to the lean process improvement. 115 TAT
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