Bioequivalence and Bioavailability Forum

NVP ☆ 2011-10-13 21:04 (5369 d 03:21 ago) Posting: # 7484 Views: 4,794	sample size, ISV and 90%CI [Power / Sample Size] Post reply
	What is the relationship between No. of subjects and 90% confidence interval? What is the relationship between Intra-subject variability and 90% confidence interval? Edit: Category changed. [Helmut]

Helmut
★★★

Vienna, Austria,
2011-10-13 21:11
(5369 d 03:14 ago)

@ NVP
Posting: # 7486
Views: 3,936

First hello!

Post reply

Dear NVP!

What is the reason for not even saying ‘hello’? See also here and there. Some members of the forum (including myself) may consider your posting style as rude.

❝ What is the relationship between No. of subjects and 90% confidence interval?

For given point estimate (=test/reference ratio) and CV:

The higher the sample size, the tighter the CI.

❝ What is the relationship between Intra-subject variability and 90% confidence interval?

For given point estimate (=test/reference ratio) and sample size:

The higher the CV, the wider the CI.

Homework.

—
Dif-tor heh smusma 🖖🏼 Довге життя Україна!
Helmut Schütz

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NVP ☆ 2011-10-16 12:14 (5366 d 12:11 ago) @ Helmut Posting: # 7500 Views: 3,858	thanks Post reply
	❝ Dear NVP! ❝ ❝ What is the reason for not even saying ‘hello’? point noted and thanks for answer

sample size, ISV and 90%CI [Power / Sample Size]

First hello!

thanks