The mean serum-creatinine level measured in 40 patients 24 hours after they rece

Question

The mean serum-creatinine level measured in 40 patients 24 hours after they received a newly proposed antibiotic was 1.2 mg/dL. If the mean and standard deviation of serum creatinine in the genreal population are 1.0 mg/dL and 0.8 mg/dL, respectively, then, using a significance level of 0.05, test whether the mean serum-creatinine level in this patient group is different from that of the general population.

State the null and alternative hypothesis, select a test statistic, and compute a critical region

Explanation / Answer

Ho : miu = 1.2

H1 : miu is different from 1.2

we will use t distribution because we dont have enough information about the sandard deviation of the population

critical region for 0.05

alpha / 2 = 0.025 df = 40-1 =39

critical value : 2.021

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.