Analytics W3

What is the significance level

What indicates the strength of the evidence
against the null hypothesis?

the smaller the p-value is,

Significance Level=

What is a Type I Error?

What is a Type 2 error ?

A type I error is often called a _________
(we incorrectly reject the null hypothesis when it is actually true)

a type II error is often called a_______ (we incorrectly fail to reject the null hypothesis when it is actually not true).

The only difference in setting up a one-sided test versus a two-sided test is the _____

How many tails for a 1-sided test?
How many tails for a 2-sided test?

What is =T.TEST(array1, array2, tails, type)?

how to calculate the p value using excel?

What is the purpose of single-population hypothesis test?

What is the purpose of two-population hypothesis tests?

To perform a two-sample test in Excel, which function do we use?

The null hypothesis is the _______ of the hypothesis we are trying to prove (the alternative hypothesis).

the theory or claim we are trying to substantiate is the _____