How to calculate interval estimate without standard deviation
Answers
Answered by
0
Step-by-step explanation:
How to Find a Sample Size Given a Confidence Interval and Width (unknown population standard deviation)
za/2: Divide the confidence interval by two, and look that area up in the z-table: .95 / 2 = 0.475. ...
E (margin of error): Divide the given width by 2. 6% / 2. ...
: use the given percentage. 41% = 0.41. ...
: subtract from 1.
Answered by
1
Answer:
To calculate a CI for the population mean (average), under these conditions, do the following:
Determine the confidence level and find the appropriate z*-value. Refer to the above table.
Find the sample mean. for the sample size (n). ...
Multiply z* times. and divide that by the square root of n. ...
Take.
Step-by-step explanation:
hope it helps u
please mark it as brainlist
Similar questions