Engineering Fundamentals: An Introduction to Engineering
Engineering Fundamentals: An Introduction to Engineering
6th Edition
ISBN: 9780357391273
Author: Saeed Moaveni
Publisher: Cengage Learning US
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Chapter 19, Problem 40P
To determine

Create the probability distribution and plot the probability distribution curve.

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Six samples of each of four types of cereal grain grown in a certain region were analyzed to determine thiamin content, resulting in the following data (μg/g). Wheat 5.2 4.4 6.0 6.0 6.7 5.7 Barley 6.4 8.0 6.2 7.6 5.9 5.7 Maize Oats 5.7 4.6 6.4 4.8 6.1 5.3 8.2 6.1 7.9 7.1 5.6 7.1 USE SALT Does this data suggest that at least two of the grains differ with respect to true average thiamin content? Use a level α = 0.05 test. State the appropriate hypotheses. O Ho: H1 H2 H3 #44 H₁: all four μ's are equal Ho M1 M2 M3 = μ4 H: all four μ's are unequal Ho: M1 M2 M3 M4 Ha : at least two us are equal O Ho H1 H2 =μ3=4 Ha at least two μ's are unequal Compute the test statistic value. (Round your answer to two decimal places.) f = What can be said about the P-value for the test? P-value > 0.100 0.050 P-value < 0.100 0.010 < P-value < 0.050 0.001 < P-value < 0.010 P-value < 0.001 State the conclusion in the problem context. ◇ Reject Ho. There is significant evidence that at least two of the grains…
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The following data was reported on total Fe for four types of iron formation (1 = carbonate, 2 = 1: 21.0 28.1 27.8 27.0 28.5 25.2 25.3 27.1 20.5 31.1 2: 26.2 24.0 26.2 20.2 24.3 34.0 17.1 26.8 23.7 25.3 3: 30.3 34.0 27.5 29.4 28.2 26.2 29.9 29.5 30.0 36.5 4: 37.2 44.2 34.1 30.3 31.8 33.1 34.1 32.9 36.3 25.8 silicate, 3 = magnetite, 4 = USE SALT Carry out an analysis of variance F test at significance level 0.01. State the appropriate hypotheses. O Ho H₁ =μ₂ = 3 = μ4 H: at least two μ's are unequal # O Ho: H1 H2 H3 H4 Ha: at least two μ's are equal # # O Ho: H1 H2 H3 H4 Ha all four μ's are equal O Ho H1 H2 H3 = 4 H: all four μ's are unequal Summarize the results in an ANOVA table. (Round your answers two decimal places.) Sum of Mean Source df Squares Squares f Treatments Error Total Give the test statistic. (Round your answer to two decimal places.) f = What can be said about the P-value for the test? OP-value>0.100 0.050 < P-value < 0.100 0.010 < P-value < 0.050 0.001 < P-value < 0.010…
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