Determine the critical value for calculating a confidence interval for a population mean using a table or technology.
State and check the Random, 10%, and Normal/ Large Sample conditions for constructing a confidence interval for a population mean.
Construct and interpret a confidence interval for a population mean.
**Determine the sample size required to obtain a confidence interval for a population mean with a specified margin of error.
Read more about degrees of freedom here.
How good are guesses about how much candy is in a jar?
Use your calculator to play around with tcdf and invT a bit. Try to develop a clear understanding of how t-models compare to the more familiar Normal model.
If the p-value is low
Reject Ho