The following table and the figure show the scientists’ results. In the table and the figure some standard deviations of results overlap. • An overlap of standard deviations shows the difference between the means is not significant. • No overlap of standard deviations shows a significant difference between the means. A student looked at the scientists’ method and the results in the table and figure above. The student stated: ‘Metformin works better when used with other drugs.’ Evaluate the student’s statement.Empty Page for ASKNAt - 7050

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Q1.

The following table and the figure show the scientists’ results.

In the table and the figure some standard deviations of results overlap.

• An overlap of standard deviations shows the difference between the means is not significant.

• No overlap of standard deviations shows a significant difference between the means.

(e) A student looked at the scientists’ method and the results in the table and figure above.

The student stated:

‘Metformin works better when used with other drugs.’

Evaluate the student’s statement.

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One thought on “The following table and the figure show the scientists’ results. In the table and the figure some standard deviations of results overlap. • An overlap of standard deviations shows the difference between the means is not significant. • No overlap of standard deviations shows a significant difference between the means. A student looked at the scientists’ method and the results in the table and figure above. The student stated: ‘Metformin works better when used with other drugs.’ Evaluate the student’s statement.Empty Page for ASKNAt – 7050”

Met + A lowers blood glucose more than Met alone, and the SDs don’t overlap, so the difference is likely real. Met + B also lowers blood glucose more than Met, but the SDs overlap, so it might just be due to chance. The number of people in each group isn’t the same and some groups are small, so results might not be representative. Also, the starting blood glucose levels at 30 minutes are higher in the 2-drug trials, which could affect the percentage reduction.