Mosses grow as cell filaments when they are young (just a little like algae).

In this biological example, I am concerned with a mutant moss line that we hypothesized to have a higher cell count in moss filaments. I could not find evidence for a difference, though. A Null-hypothesis, using the t-test had to be maintained.

Now, I wonder how I would do statistical calculations with the Null-hypothesis of a set difference of for example a 10% difference. I want to know how valid my experiment is to support a zero difference is. To what percentage would my experiment with a given sample size and variation show a difference of 10% between populations as significant and how could I practically calculate this.

Usually one establishes a zero-difference Null-hypothesis, that one wants to reject.

Now I want to establish a 10%-difference Null-hypothesis, that I want to reject.

help me please.

In this biological example, I am concerned with a mutant moss line that we hypothesized to have a higher cell count in moss filaments. I could not find evidence for a difference, though. A Null-hypothesis, using the t-test had to be maintained.

Now, I wonder how I would do statistical calculations with the Null-hypothesis of a set difference of for example a 10% difference. I want to know how valid my experiment is to support a zero difference is. To what percentage would my experiment with a given sample size and variation show a difference of 10% between populations as significant and how could I practically calculate this.

Usually one establishes a zero-difference Null-hypothesis, that one wants to reject.

Now I want to establish a 10%-difference Null-hypothesis, that I want to reject.

help me please.

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