The mean and standard deviation of Carbon concentration is 5 mg/L and 2 mg/L based on...
The mean and standard deviation of Carbon concentration is 5 mg/L and 2 mg/L based on 25 samples from a river. The mean and standard deviation of Nitrogen concentration is 7 mg/L and 3 mg/L based on 35 samples from the same river. The experimenter wants to answer the question if the Nitrogen concentration is higher than the Carbon concentration. Which of the following methods do you use?
(a) Z-test, Default Procedure
(b) Z-test, Pooled Variance Procedure
(c) T-test, Pooled Variance Procedure
(d) T-test, Default Procedure
Homework Answers
We do not know the population standard deviation but the sample standard deviations are not significantly different. Hence,
The correct method to use is:
T-test, Pooled Variance Procedure
Option C is correct.
Add Answer to:
The mean and standard deviation of Carbon concentration is 5
mg/L and 2 mg/L based on...
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please show all steps 6.2.28-T The following data represent the concentration of dissolved organic carbon (mg/L)...
please show all steps
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