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No. & Date Asked  Question 

# 399 :: 9/20/08

When you calculate CIs for time on task, I notice that you use the critical value from the tdistribution (TINV(0.05, degrees_of_freedom)). But when y. . .
exact interval,
Binomial Probability,
TINV,
Adjusted Wald,
Wald Interval,
Normal Approximation,
Small Sample 
# 362 :: 9/1/08

Popcorn kernels take between 100 and 200 seconds to pop. What sample size (number of kernels) would be needed to estimate the true mean seconds to pop. . .
Small Sample,
Sample Size,
Margin of Error,
Confidence Intervals 
# 145 :: 4/8/08

Will the t statistics calculated from 4 observations valid?. . .
tstatistic,
tdistribution,
Small Sample 
# 124 :: 3/20/08

What constitutes a small sample size in a test of two populations? . . .
tdistribution,
ZStatistic,
Small Sample 