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Question

From literature it is known that the length of an E. coli bacterium is 1 μm with a standard deviation of 0.1 μm. After treatment with chemical “X” the mean length of 100 cells is 1.1 μm with a standard deviation of 0.1 μm. What will you conclude from this experiment?

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Treatment with chemical “X” has increased the length with a statistical confidence of more than 99% Correct The length has increased with statistical confidence of 67% Length has not increased and the observed difference is due to statistical error Length increased can be claimed with 95% statistical confidence.

Explanation

In aptitude and reasoning, quantitative reasoning dictates that ratio, percentage and series logic determine correct calculation. Therefore Treatment with chemical “X” has increased the length with a statistical confi... is correct as it meets mathematical and logical criteria, supported by mechanistic studies and conserved across related systems.

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Experimental Microbiology 29 Jan 2024

Practice question

From literature it is known that the length of an E. coli bacterium is 1 μm with a standard deviation of 0.1 μm. After treatment with chemical “X” the mean length of 100 cells is 1.1 μm with a standard deviation of 0.1 μm. What will you conclude from this experiment?

Options

Explanation

Comments

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