Answer Happy

either a word processed document or on paper with a picture upload. A psychologist is studying the concentration of a certain enzyme in saliva as a possible indicator of chronic anxiety level. It was not known ahead of time whether anxious individuals would have more or less of the enzyme. Enzyme levels were measured in a sample of 10 people with clinical anxiety. A separate comparison group of 10 individuals who do not have anxiety also had their enzyme levels measured. The data are reported below. You must choose which comparison test is most appropriate (paired vs independent). Using the four steps of an hypothesis test, Do these two groups differ in their enzyme levels (a - .01)? You must show your work by uploading a file or picture of written work. Observation Anxiety enzyme level Normal Level Difference 1 3.0 2.0 1.0 2 2.9 1.8 1.1 3 3.1 2.3 0.8 4 3.5 1.6 1.9 5 2.8 2.5 0.3 6 3.9 2.0 1.9 7 3.1 2.1 1.0 B 3.1 1.9 1.2

Observation Anxiety enzyme level Normal Level Difference er 2021-22 1 3.0 2.0 1.0 hcements 2 2.9 1.8 1.1 3 3.1 2.3 0.8 4 3,5 1.6 1.9 5 2.8 25 0.3 6 3.9 edia 2.0 1.9 Gallery 7 3.1 2.1 1.0 Es 8 3.1 19 1.2 at 9 Tutoring 2.6 15 1.1 10 2.2 2.5 -0.3 Means 3.0 2.0 1.0 Standard Deviations 0.464 0.343 0.658 so - Pooled standard deviation 0.407 -

For the previous question, what is the 99% confidence interval for the difference in means (or mean difference, depending on type of test)?