Suppose a researcher is interested in a new treatment plan for CD4 cell count in immune-compromised patients with HIV. In order to investigate the new drug, the researcher gathers a group of 55 individuals with a mean CD4 count of 300 cells/mm3 after treatment with a standard deviation of 25.1. Test the hypothesis that the mean CD4 count goal is not 292 cells/mm3. Perform a two-way directional test, complete the 5 step process and calculate the appropriate confidence interval. (Use an alpha level of 0.01) H0:u= (Example answer ###) Ha:u ≠ (Example answer ###) Ztest= (Example answer #.##) p-value= (Example answer .###) Confidence Interval= (Example answer ###.#,###.#) Fail to reject or Reject the H0 (Example answer Fail to reject or Reject)
Suppose a researcher is interested in a new treatment plan for CD4 cell count in immune-compromised patients with HIV. In order to investigate the new drug, the researcher gathers a group of 55 individuals with a
H0:u= (Example answer ###)
Ha:u ≠ (Example answer ###)
Ztest= (Example answer #.##)
p-value= (Example answer .###)
Confidence Interval= (Example answer ###.#,###.#)
Fail to reject or Reject the H0 (Example answer Fail to reject or Reject)
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