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Recent questions and answers in Statistics

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0 0 answers
1.6k
1.6k 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
526
526 views
is it possible to derive a new 95% CI from two separate 95% CIs?
1 1 vote
0 0 answers
563
563 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
597
597 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
962
962 views
What is degree of Freedom while calculating confidence interval?
1 1 vote
1 1 answer
826
826 views
How to find the strength of a P-value against a null hypothesis?
0 0 votes
2 answers 2 answers
1.2k
1.2k 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
1.7k
1.7k views
What is the use of following equation?
Please explain ....$$a^2+b^2=c^2$$
1 1 vote
1 1 answer
845
845 views
nonpooled independent samples t-interval method
1 1 vote
1 1 answer
837
837 views
Computing the Confidence Interval for a Difference Between Two Means
1 1 vote
1 1 answer
964
964 views
How do you know when to use T-Distribution instead of regular Confidence Interval?
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1 1 answer
1.1k
1.1k views
What is the T Distribution?
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1 1 answer
980
980 views
How to calculate normal distribution?
0 0 votes
1 1 answer
940
940 views
Probability for the data items within mean +- 1, +-2, +-3 standard deviation?
2 2 votes
2 2 answers
1.2k
1.2k views
What will be probability for the data items within mean +- 1, +-2, +-3 standard deviation?
1 1 vote
1 answers 1 answer
4.3k
4.3k views
How do I calculate a and z a/2?
1 1 vote
1 1 answer
1.7k
1.7k views
What is the rule that determines percentages with the mean +- 1,2 or 3 standard deviations?
1 1 vote
1 1 answer
1.3k
1.3k views
How much percentage of data items are consumed within mean +-1 , +-2, +-3 standard deviation?
1 1 vote
1 answers 1 answer
1.1k
1.1k 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
899
899 views
What is sampling error?
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