In: Statistics and Probability
The following information was obtained from independent
random samples. The Degrees of Freedom have be calculated...
The following information was obtained from independent
random samples. The Degrees of Freedom have be calculated
to be 19. The Standard Deviations are
Unknown. |
Small Sample Size: Use t-value |
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Sample 1 |
Sample 2 |
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Sample
Mean |
45 |
42 |
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Sample
Variance |
85 |
90 |
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Sample
Standard Deviation |
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Sample
Size |
10 |
12 |
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Standard
Error |
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Confidence Coefficient |
0.95 |
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Level of
Significance |
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Degrees
of Freedom |
19 |
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t-value |
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Margin of
Error |
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Point
Estimate of Difference |
3 |
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Lower
Limit |
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Upper
Limit |
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The t-value for the sample is |
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