Discuss the below:
What is a ztest?
What is the difference between a tdistribution and a normal distribution provide an example. 50 samples of a certain brand of headphones is taken from a radio shack warehouse. A standard deviation of 5 is assessed. What is the standard error of the mean?
To what type of binomial problem would we apply a poisson approximation?
What is the difference between !% significance and 5% significance?
What % probability is associated with a zvalue of 1.3?
What is the difference between mean, mode and median?
How many 'combinations' of 3 persons can you obtain from a group of 6 persons