Statistics (yup) Statistics (yup yup) Statistics (yup) Statistics (yup yup)
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11 Terms
What is this equation for, and describe the process of it.
It is for calculating the sample mean, You take the sum of the individual scores and divide it by the sample size (n)
What is this equation for, and describe the process of it.
It is for calculating standard deviation. Individual variable-mean, square individual results, add them together, divide by the sample size-1, square root the result.
What is this equation for, and describe the process of it.
Standard error, take the standard deviation and divide it by the square root of the sample size
What is this equation for, and describe the process of it.
Standard error for the sample proportion, you take the sample proportion and multiply it by 1-sample proportion, divide by the sample size, then square root the final result.
What is this equation for, and describe the process of it.
Standard error for the difference in sample proportion, you take the sample proportion and multiply it by 1-sample proportion, divide by the sample size, repeat for second proportion, add them together and square root the result.
repeat
damn
What is this equation for, and describe the process of it.
Z-score, you take the individual data point and subtract it by the mean, and divide it by the standard deviation.
What is this equation for, and describe the process of it.
this is the ONE sample z-test, you take the mean and subtract it from null hypothesis/ the standard deviation/the square root of the sample size.
What is this equation for, and describe the process of it.
This formula is for calculating for 1 Standard deviation, which contains 68% of the population, you take the mean and add/subtract the standard deviation. For 2 SD’s you would do s(2) instead and so on.
What is this equation for, and describe the process of it.
It is for 95% of the sample mean. You take the mean add/subtract 1.96 and multiply it by the standard error. (for doing other sample means replace 1.96 with necessary number but this likely won’t be asked.)
sample statistic ± 1.96 * SE. What is this equation for and how do you work it?
95% Confidence Interval for Proportions- Sample statistic ± 1.96 * Standard Error