Textbook ExpertVerified Tutor
7 Dec 2021
Given information
The given frequency distribution is :
Where X is represented as the number of colors on national flags.
Here, Confidence Interval is considered as 95%.
Step-by-step explanation
Step 1.
TO KNOW WHAT IS AREA OF THE TAIL :
The area of the tail is the probability of rejecting the null hypothesis when true. The area of the tail is also known as Significant Level or Level Of Significant (LOS).
TO KNOW ABOUT CONFIDENCE INTERVAL :
Confidence interval (CI) is the true mean value estimation of an unknown parameter according to the mentioned percentage or range. It defines how close the confidence value is from the sample mean
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