Wednesday
May 22, 2013

# Posts by ash

Total # Posts: 382

Chemistry
you were asked to determine the melting point of an unknown compound in order to identify at as one of the compounds you had previously examined. What else could you have done to make sure that your unknown was indeed the compound you believed it to be, and not just a compound...

Chemistry
In the determination of melting points, why cant you use water instead of mineral oil?

Chemistry
How will the boiling point of a substance be affected by increasing the atmospheric pressure? How will the boiling point of a substance be affected by decreasing the atmospheric pressure?

Math
actually i have a question is that 1 big problem or 4 different ones???

art
a positive bias

Statistics
hi i need help calculating the standard error using the central limit theorem. *a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11, there are 5x5=25 samples of the two scores (n=2)* i already calculated the standard deviation and mean. for the question my standa...

math
hi i need help calculating the standard error using the central limit theorem. *a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11, there are 5x5=25 samples of the two scores (n=2)* i already calculated the standard deviation and mean. for the question my standa...

statistics
hi, how would i calculate the standard deviation of the following sampling distribution of means. apparently this is the longhanded way of calculating standard error. *a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11 (2, 2) ... 2 (2, 3) ... 2.5 (2, 6) ... 4 (...

statistics
what is meant by the standard error of a statistic? what is it an index of? what is meant by the standard error of the mean? what it is an index of?

statistics
what is sampling distribution and sampling distribution of means?

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