You were given a healthy and a diseased human blood smear specimen. You performe

Question

You were given a healthy and a diseased human blood smear specimen. You performed a simple random sampling without replacement of 30 cells and made measurements on them for both the healthy and diseased smears (60 total cells were measured). The variable that was measured was the width for each cell.

1. Are the samples and observations dependent or independent?

2. What is an appropriate t-test (Paired t -test, two sample t-test or Anova) to compare the mean cell lengths of the diseased and the healthy groups?

Explanation / Answer

Here total 60 cells were measured 30 for each healthy and diseased smears.

1. Samples and observations are independent.

2. Samples and observations are independent so here we can use two sample t-test

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