Explain how to perform a two-sample z-test for the difference between two population means using independent samples with sigma
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Answer:
Step-by-step explanation:
Given : Sample size :
Sample mean :
Standard deviation :
Significance level :
Critical value :
Formula to find the confidence interval for population mean :-
Hence, a 95% confidence interval for the population mean =
Answer:
The answer is ""
Step-by-step explanation:
In point a:
The requires 1 genin, 1 chunin , and 1 jonin to shape a complete team but we all recognize that each nation's team is comprised of 1 genin, 1 chunin, and 1 jonin.
They can now pick 1 genin from a certain matter of national with the value:
They can pick 1 Chunin form of the matter of national with the value:
They have the option to pick 1 join from of the country team with such a probability:
And we can make the country teams: different forms. Its chances of choosing a team full in the process described also are:
In point b:
In this scenario, one of the 3 professional sides can either choose 3 genins or 3 chunines or 3 joniners. So, that we can form three groups that contain the same ninjas (either 3 genin or 3 chunin or 3 jonin).
Its likelihood that even a specific nation team ninja would be chosen is now:
Its odds of choosing the same rank ninja in such a different country team are:
The likelihood of choosing the same level Ninja from the residual matter of national is: Therefore, all 3 selected ninjas are likely the same grade: