Access over 20 million homework & study documents

Do One Of The Following As Appropriate. A Find The Critical Value Z

Content type
User Generated
Subject
Statistics
Type
Homework
Rating
Showing Page:
1/1
Critical Value
Do one of the following, as appropriate. (a) Find the critical value z
α/2
, (b) find the critical
value t
α/2
, (c) state that neither the normal nor the t distribution applies.
Confidence level 98%; n = 27 ; σ is unknown; population appears to be normally
distributed.
As σ is unknown and the population appears to be normally distributed we need to use t
distribution so, from the table of critical t-values we get,
α = 0.02
n = 27
df = n 1 = 27 1 = 26
𝑡
0.02
2
;26
= 𝑡
0.01
𝒕
𝟎.𝟎𝟐
𝟐
;𝟐𝟔
= 𝟐. 𝟒𝟕𝟗
Option D

Sign up to view the full document!

lock_open Sign Up
Unformatted Attachment Preview
Critical Value Do one of the following, as appropriate. (a) Find the critical value zα/2 , (b) find the critical value tα/2 , (c) state that neither the normal nor the t distribution applies. Confidence level 98%; n = 27 ; σ is unknown; population appears to be normally distributed. As σ is unk ...
Purchase document to see full attachment
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Anonymous
Very useful material for studying!

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4