Which of the following statements is NOT true regarding confidence intervals? a. When a confidence interval contains the number 1 is indicates that the results are consistent with a positive association.
b. A 95% confidence interval contains the "true" population estimate 95% of the time.
c. Confidence intervals are influenced by the variability of data and the sample size.
d. When a small sample size is used a wide confidence interval may result because it is difficult to produce precise results.

1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.