Identify and explain the features of the normal distribution
What is the difference between hypothesis testing and point estimation?
What is null hypothesis? Why is a null hypothesis called null? What is an alternative hypothesis? Why is an alternative hypothesis called alternative?
If you were to calculate a confidence interval using a confidence level of 0.9 and then calculated a second confidence interval using the same data, but change the confidence level to 0.95, would the interval be more narrow or wider? What is the reason?