Question

Explain to me the Type 1 error. If the probability of making a Type 1 error is 0.07, do I reject the null hypothesis?

Answer 1

Answer)

Type 1 error means rejection of true null hypothesis

For example you have following hypothesis

Null hypothesis Ho : u = 5

Alternate hypothesis Ha : u not equal to 5

u means population mean

So, if we will conclude that population mean is not equal to 5, but infact it is equal to 5, then we will commit type 1 error

Probability of type 1 error is significance level

And we reject the null hypothesis when obtained P-value is less than the given significance level.