Note: I am only given one opportunity at this problem. I believe the answer I have is incorrect; please help.   A random sample of 18 size AA batteries for toys yield a mean of 3.33 hours with standard deviation, 0.64 hours. (a) Find the critical value, t*, for a 99% CI (give to at least 3 decimal places). t* =  (b) Find the margin of error for a 99% CI (give to at least 2 decimal places).

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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Note: I am only given one opportunity at this problem. I believe the answer I have is incorrect; please help.  

A random sample of 18 size AA batteries for toys yield a mean of 3.33 hours with standard deviation, 0.64 hours.

(a) Find the critical value, t*, for a 99% CI (give to at least 3 decimal places). t* = 

(b) Find the margin of error for a 99% CI (give to at least 2 decimal places). 

 

 

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