SOLUTION: 4. Strength tests carried out on samples of two yarns spun to the same count gave the following results:
Number in
sample Sample
Mean Sample
variance
Yarn A 4 50 42
Yarn B 9
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-> SOLUTION: 4. Strength tests carried out on samples of two yarns spun to the same count gave the following results:
Number in
sample Sample
Mean Sample
variance
Yarn A 4 50 42
Yarn B 9
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Question 516991: 4. Strength tests carried out on samples of two yarns spun to the same count gave the following results:
Number in
sample Sample
Mean Sample
variance
Yarn A 4 50 42
Yarn B 9 42 56
The strengths are expressed in pounds. Does the difference in mean strengths indicate a real difference in the mean strengths of the yarn?
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