Super stuck on Type 1 and Type 2 errors

Hi everyone,

I used to think maths was my strong point, however we've been doing statistics at school recently and I am useless at it.

I have a question which asks me to calculate the type 1 & 2 error for a question with the following data:

I know the definitions of type 1 and 2 errors, just have no idea how to work them out (Headbang)

Reported probability of success: 0.55

Sample size: 30

Significance level of test: 5%

For the calculating type 2 error question it says that the actual probability of success is 0.6

Any help will be really appreciated, this section of maths has really made me prefer economics (Surprised)

Oli

EDIT: After an incredibly painful ordeal I have managed to get the same answer for the probability of a Type 1 error as in the back of the book. Now onto type 2...