I'm lost no how to find the cutoff rejection region and which table to use?(adsbygoogle = window.adsbygoogle || []).push({});

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.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Finding the value for rejection region using some kind of table

**Physics Forums | Science Articles, Homework Help, Discussion**