Hypothesis Testing

Question 1

What values does binomial CD give

Answer 1

P(x<a)
. Less than or equal to

Question 2

conditions which must be met to conduct binomial distribution probability

Answer 2

COIN

Constant probability
Outcomes (2)
Independant events
Number of trials/possibilities = Fixed

Question 3

what is significance level

Answer 3

the probability of rejecting the nul hypothesis when in fact it is true

Question 4

Setting up hypothesis of Sample mean hypothesis testing (normal distribution)

Answer 4

let M be the population mean of …
Ho: M =
H1: M<

Assume Ho is true, X~N(M, σ^2)

Question 5

Setting up hypothesis of PMCC hypothesis testing

Answer 5

Let P (rho) be the population correlation coeficcient of…

Ho: P = 0
H1: P _ 0

Assume Ho is true, r (PMCC)

Question 6

When do you reject nul PMCC hypothesis testing

Answer 6

when r is more extreme (further away from 0) than critical value

Result is significant. Reject nul hypothesis

Question 7

How to conduct Sample mean hypothesis testing (normal distribution)

Answer 7

• Set up hypothesis with original Mean
• write down X~N(μ, σ2):
• Use Z formula in booklet to obtain test statstic
• Draw normal distribution curve to show position of test statistic on STANDARD normal distribution curve (0,1^2)
• Convert critical value into a Z value using inverse normal (area to left of point, mean 0 , SD 1
• Place this critical value on curve
• if test statistic is more extreme (further away from mean) than critical value, reject nul
• There is sufficient evidence to suggest…