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### Statistical test for sample size equals one [duplicate]

I know statistical test usually requires "enough" samples to estimate the uncertainties. But what if I have only one sample in each group, and also I "know" which distribution this ...
15k views

### How to perform Student's t-test having only sample size, sample average and population average are known?

Student's $t$-test requires the sample standard deviation $s$. However, how do I compute for $s$ when only the sample size and sample average are known? For example, if sample size is $49$ and sample ...
21k views

### If I only have a range, is it acceptable to calculate an average out of it?

Supposed I have only this data point available: Concentration = (1.1 - 2.0 g/L). Is it acceptable to conclude : ...
837 views

### Which statistical test to use when there's no data of SD but just know the mean?

In our lab, we work with the retina which yields very little sample. Although we have a reasonable sample size of six animals in each group, I don't understand which test to be used to test for ...
3k views

### How much sense does median of one number make?

Median of one number = the number itself. I am calculating the median price sq ft of properties of different areas based on the different data entries I have got that include their ID, area and ...
400 views

### How can I get the CI of a couple of numbers?

Is it possible to get the Confidence Interval of a couple of numbers (or more) without knowing the distribution or anything like that ? Thanks.
1k views

### Comparing pre and post test raw scores with one subject

I am currently in the process of trying to analyze data from research carried out. I am analyzing whether a music intervention showed improvements in rate, accuracy, fluency, and comprehension on a ...
85 views

### Reliability of single case reports vs group inference

In his paper "Ten ironic rules for non-statistical reviewers", Karl Friston includes the following tongue-in-cheek response of a fictional author to a reviewer who complains about the sample size ...