business statistics II QUESTION 19 An experiment was conducted to daterming whet
ID: 3352789 • Letter: B
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business statistics II
QUESTION 19 An experiment was conducted to daterming whether any significant differences exist between the strengths of parachutes created by different suppliers. The amount of force neaded to tear sach parachute was measured based n a tensila- strength scale, and the results for 4 different suppliers are shown below. Five parachutes were tested fro each supplier Supplier 1 18.5 24.0 7.2 19.9 18.0 Supplier 2 25.3 25.3 24.0 21.2 24.5 Supplier 3 20.6 25.2 20.8 24.7 22.9 Supplier 4 25.4 19.9 22.6 17.7 20.4 Run an ANOVA test using Microsoft Excel Let = 0.05 What is the test statistic valus? QUESTION 20 An experiment was conducted to datenmine whether any significant differences exist between the strengths of parachutes created by different suppliers. The amount of force neaded to tear each parachute was measured based on a tensila- strength scale, and the results for 4 different suppliers are shown below. Five parachutes were tested fro each supplier Supplier 1 18.5 24.0 17.2 Supplier 3 20.6 25.2 20.8 24.7 22.9 Supplier 4 25.4 19.9 22.6 17.7 20.4 Supplier 2 25.3 24.0 18.0 24.5 Run an ANOVA test using Microsoft Excel Let = 0 05 Whatis your conclusion? There are no significant differences in the strengths of parachutes from different suppliers. There are difference$ in strengths of parachutes between all of the suppliers There are differences in strengths of parachutes between at least 2 of the suppliers. InconclusiveExplanation / Answer
First we calculate mean and standard deviation of each supplier
Supplier 1
Mean = 19.52
S.D. = 2.69
Supplier 2
Mean = 24.26
S.D. = 1.92
Supplier 3
Mean = 22.84
S.D. = 2.13
Supplier 4
Mean = 21.2
S.D. = 2.92
By doing test analysis bu ANOVA in Excel
Test Static value will be 3.501
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