A vinegar sample was analyzed for percent acetic acid, with the following result

Question

A vinegar sample was analyzed for percent acetic acid, with the following results: Given the following values of Q for rejection of data, which decision is appropriate? No values should be rejected The value 4.06 should be rejected The value 4.39 should be rejected Both 4.06 and 4.39 should be rejected For the vinegar sample in question 11, the true value for the sample is 5.0%. Given the following values of t, which statement is appropriate: The analysis was not accurate at either the 90% or the 95% level of probability. The analysis was accurate at the 90% probability level, but not at the 95% probability level. The analysis was accurate at the 95% probability level, but not at the 90% probability level. The analysis was accurate at both the 90% and 95% levels of probability.

Explanation / Answer

12.option d is correct both 4.06 and 4.39 should be rejected as they do not fall in the analysis range

13. option a is correct. The analysis is not correct at 90% or 95% of probability because the values are obtained are neither precise nor accurate.

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