- #1

korr2221

- 20

- 0

This is an example,

Data

n 34

X-bar 10.3

s 3.1

98% Confidence Interval for µ is

10.3 ± 2.33 x 0.5316

= (9.0632 , 11.5368)

Hypothesis

H0: µ ≤ 9

H1: µ > 9

Tests Z-stat = 1.3 = 2.4452

Statistic 0.5316

Significance Level = 0.01

Rejection Region =

Tail = RIGHT

Cutt -Off = Z-alpha = 2.326

Decision = Reject H0

p-value = 0.0072

I understand how they reject H0, but I am lost how they got 2.326. I think it's in the Z-table but I'm not sure, can someone explain to me clearly. It would also help if you can tell me how to find 0.0072 for the p-value.