Author Question: When doing a chi-square and goodness-of-fit test, the squared difference between the observed and ... (Read 122 times)

RYAN BANYAN · **on:** Jun 24, 2018

When doing a chi-square and goodness-of-fit test, the squared difference between the observed and theoretical frequencies should be large if a null hypothesis is to be rejected.

Indicate whether the statement is true or false

Question 2

With probability 0.09 the number of successes is less than how many?

What will be an ideal response?

jointhecircus · **Reply #1 on:** Jun 24, 2018

Answer to Question 1

TRUE

Answer to Question 2

P(X < a n = 1800, P = 0.40 ) P(X < a = 720, = 20.785 ) = 0.09
PZ < (a 720 ) / 20.875 = 0.09
(a 720 ) / 20.875 = -1.34
a = 692.02 692