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Can the sample mean in statistics be either positive or negative?
It can have either a negative or positive trend
What does cultures are negative mean in a urine sample?
It means theres nothing in your pee like drugs.
What is the value of the standard error of the sample mean?
The sample standard deviation (s) divided by the square root of the number of observations in the sample (n).
Can the variance of a sample be negaTIve?
No.
Can mean be negative?
Yes, the mean can be negative if the numbers being averaged are negative. For example, if you are averaging temperatures and all of the temperatures are below zero, your average temperature will be a negative number.
Can the sample mean in statistics be either positive or negative?
It can have either a negative or positive trend
Can a minimum data value of a sample be a negative number?
Yes.
Explain why the absolute value of a number is never a negative number?
Sample Response: The absolute value of a number is the distance the number is from 0 on a number line. Since distance is never negative, absolute value is never negative.
What is the difference between calculating the sample mean and the population mean?
You calculate the actual sample mean, and from that number, you then estimate the probable mean (or the range) of the population from which that sample was drawn.
How do you find the sample mean?
Add the values of the variable for all elements in the sample and divide by the number of elements on the sample.
What mean and upper or lower spec would produce a negative Cpk index?
If lower specification is kept 0 and upper sepecification is 0.2 and mean is 1.64883 havig sample number of 60 the the Cp turns out to be of 0.02 and Cpk is negative having thevalue of -0.35.
Division of negative signs?
The rules for division are exactly the same as the rules for multiplication. * Division (or multiplication) of a positive number by a positive number = positive * Division of a positive number by a negative number = negative * Division of a negative number by a positive number = negative * Division of a negative number by a negative number = positive If you have trouble remembering any of these, just try out a sample division on any calculator - for instance, if you divide (-1) / (-1) you get +1.
What does cultures are negative mean in a urine sample?
It means theres nothing in your pee like drugs.
Difference between calculating the sample mean and the population mean?
The same basic formula is used to calculate the sample or population mean. The sample mean is x bar and the population mean is mu. Add all the values in the sample or population and divide by the number of data values.
What is the value of the standard error of the sample mean?
The sample standard deviation (s) divided by the square root of the number of observations in the sample (n).
Can the variance of a sample be negaTIve?
No.
When a number in a fraction is negative does that mean that the whole fraction is negative?
Yes, it does.
