Author Question: Determine the critical values for a two-tailed test of a population mean at the = 0.01 level of ... (Read 68 times)

hubes95 · **on:** Jul 24, 2018

Determine the critical values for a two-tailed test of a population mean at the = 0.01 level of significance based on a sample size of n = 29.

A) 2.763 B) 2.756 C) 2.467 D) 2.462

Question 2

Researchers wanted to determine whether there was an association between high blood pressure and the suppression of emotions. The researchers looked at 1800 adults enrolled in a Health Initiative Observational Study.

Each person was interviewed and asked about their response to emotions. In particular they were asked whether their tendency was to express or to hold in anger and other emotions. The degree of suppression of emotions was rated on a scale of 1 to 10. Each persons blood pressure was also measured. The researchers analyzed the results to determine whether there was an association between high blood pressure and the suppression of emotions. A) cross-sectional; Information is collected at a specific point in time.
B) cohort; Individuals are observed over a long period of time.
C) retrospective; Individuals are asked to look back in time.