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st: critical value

From   "Lynn Lee" <>
To   <>
Subject   st: critical value
Date   Mon, 22 Oct 2012 18:15:27 +0800

Dear Maarten,

I rechecked the critical value of z at 10% significance level, the critical
value is 1.645. While the z-value reported in estimation result is 1.7 which
is greater than 1.645. But Stata11 said it is insignificance . Could you
please tell me why? 
Thank you.

Best Regards,
Lynn Lee

-----Original Message-----
[] On Behalf Of Maarten Buis
Sent: Monday, October 22, 2012 5:59 PM
Subject: Re: st: critical value

On Mon, Oct 22, 2012 at 11:48 AM, Lynn Lee wrote:
> Form p-value, z=1.7 is not significant. But when I check z-table, 
> value 1.7 meets with area between mean and 1.7 equals 0.4554.

The area between the mean and 1.7 is not the correct area of the curve to
look at for your purpose. It should be discussed in your textbook what the
solution is.

-- Maarten

Maarten L. Buis
Reichpietschufer 50
10785 Berlin
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