Final answer:
The numbers at the beginning depend on the significance given an alpha and a beta error.
Step-by-step explanation:
The numbers you come up with at the beginning depend on the significance you want to get given an alpha and a beta error. The probability of a Type I error is denoted by the Greek letter alpha (α) and represents the probability of rejecting the null hypothesis when it is true. The probability of a Type II error is denoted by the Greek letter beta (ß) and represents the probability of failing to reject the null hypothesis when it is false.