SOLUTION: For each data set: (a) State the hypotheses. (b) Use Excel’s Tools > Data Analysis (or MegaStat or MINITAB) to perform the one-factor ANOVA, using α = .05. (c) State your con
Algebra ->
Probability-and-statistics
-> SOLUTION: For each data set: (a) State the hypotheses. (b) Use Excel’s Tools > Data Analysis (or MegaStat or MINITAB) to perform the one-factor ANOVA, using α = .05. (c) State your con
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Question 374643: For each data set: (a) State the hypotheses. (b) Use Excel’s Tools > Data Analysis (or MegaStat or MINITAB) to perform the one-factor ANOVA, using α = .05. (c) State your conclusion about the population means. Was the decision close? (d) Interpret the p-value carefully. (e) Include a plot of the
data for each group if you are using MegaStat, and confidence intervals for the group means if you are
using MINITAB. What do the plots show?
Scrap rates per thousand (parts whose defects cannot be reworked) are compared for 5 randomly
selected days at three plants. Does the data prove a significant difference in mean scrap rates?
ScrapRate
Scrap Rate (Per Thousand Units)
Plant A Plant B Plant C
11.4 11.1 10.2
12.5 14.1 9.5
10.1 16.8 9.0
13.8 13.2 13.3
13.7 14.6 5.9
