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Recent questions and answers in Statistics

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0 0 answers
1.4k
1.4k views
How do I compare the count of a value in each year while having a different sanple size each year.
How do I accurately compare between the number of something a survey measure from my employees each year with a varying umber of survey engagement and employee size?If I ...
0 0 votes
0 0 answers
451
451 views
is it possible to derive a new 95% CI from two separate 95% CIs?
1 1 vote
0 0 answers
477
477 views
Individual and group relative strength in a fixed pool of players: How to approach the problem?
I apologize in advance if my question sounds too basic to be worthy of anyone's time, but statistics are not part of my curriculum.I am developing a proof of concept of a...
1 1 vote
0 0 answers
495
495 views
Using aggregate data to generate observation-level data statistically sound?
Context: In the realm of Paid Search Marketing. Current reporting does not provide event level data only aggregate totals with different segments. Want to compare distri...
1 1 vote
1 1 answer
813
813 views
What is degree of Freedom while calculating confidence interval?
1 1 vote
1 1 answer
686
686 views
How to find the strength of a P-value against a null hypothesis?
0 0 votes
2 answers 2 answers
977
977 views
What are the Gaussian equation parameters?
From the following equation, please explain what are the parameters ( $\sigma$ and $\mu$ ) of the Gaussian equation?$ g(x) = \frac{1}{\sigma\sqrt{2\pi}} e^{ -\frac{1}{2}\...
2 2 votes
2 2 answers
1.5k
1.5k views
What is the use of following equation?
Please explain ....$$a^2+b^2=c^2$$
1 1 vote
1 1 answer
689
689 views
nonpooled independent samples t-interval method
1 1 vote
1 1 answer
684
684 views
Computing the Confidence Interval for a Difference Between Two Means
1 1 vote
1 1 answer
805
805 views
How do you know when to use T-Distribution instead of regular Confidence Interval?
0 0 votes
1 1 answer
877
877 views
What is the T Distribution?
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1 1 answer
806
806 views
How to calculate normal distribution?
0 0 votes
1 1 answer
771
771 views
Probability for the data items within mean +- 1, +-2, +-3 standard deviation?
2 2 votes
2 2 answers
1.0k
1.0k views
What will be probability for the data items within mean +- 1, +-2, +-3 standard deviation?
1 1 vote
1 answers 1 answer
4.1k
4.1k views
How do I calculate a and z a/2?
1 1 vote
1 1 answer
1.5k
1.5k views
What is the rule that determines percentages with the mean +- 1,2 or 3 standard deviations?
1 1 vote
1 1 answer
1.1k
1.1k views
How much percentage of data items are consumed within mean +-1 , +-2, +-3 standard deviation?
1 1 vote
1 answers 1 answer
963
963 views
What is a test statistic in hypothesis testing and how does it relate to the p-value?
1 1 vote
1 answers 1 answer
741
741 views
What is sampling error?
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