This tip comes from my experience as a photographer. If you put yourself in front of a dark background, your webcam is going to think you are in a dark room and will try to pick up as much light as possible. In doing that, your webcam will overexpose your face and it will end up looking featureless. That's not a flattering look, so do pick a light colored background.
Sampling distributions tend to be what in shape?
Which of the following type of graph can display confidence intervals?
A sample mean is a ____ estimate and we do not know how close it is to the population mean.
To calculate confidence intervals we need make use of
In another study you have a standard deviation of 12, a mean of 20 and a sample size of 50. What is the standard error?
The standard error has been calculated as 2.6 and the sample mean is 10.00. Thus the 95% confidence interval lies between
Finally, you still have the same data (a sample size of 7, a mean of 8 and a standard deviation of 4.2) plus the standard error and you know how to calculate the 95% confidence interval. Thus what is the 95% confidence interval?
You still have the same data (a sample size of 7, a mean of 8 and a standard deviation of 4.2) plus the standard error. Next how would you calculate the 95% confidence intervals?
Consider the following data to answer the next 3 questions. You have the following sample data; a sample size of 7, a mean of 8 and a standard deviation of 4.2. From this, what is the standard error?
Normal distribution theory tells us that for large samples, 95% of sample means lie within how many standard deviations above and below the population mean?
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