Nd Hyp Testing

Question 1

N and n differences

Answer 1

N = POP And n = sample

Question 2

What does CLT stand for and what does it mean?

Answer 2

The central limit theorem
Concept that mean provides unbiased estimate of the population mean (if sampling process was carried out over and over again, sample mean would on average produce pop mean

Question 3

What is another symbol for mean?

Answer 3

X bar

Question 4

Sample mean or x bar =

Answer 4

X bar squiggle n brackets mean , so squared over n

Question 5

Step 1 of hyp

Answer 5

Write out h0 and h1 using greater/less/not = to
Then specify mean (pop mean weight of)

Question 6

Step 2 of hyp

Answer 6

State significance level - if none is mentioned in q then use 5%

Question 7

Step 3 of hyp

Answer 7

Set pop distribution assuming null is true then state sample dis

Question 8

Step 4 hyp

Answer 8

Calculate p-value (prob) calc

Question 9

Step 5 hyp

Answer 9

Compare p val with significance level + make conclusions