SOLUTION: μ1 = μ2, α = 0.05. Sample statistics: (X_1 ) ̅= 16, s1 = 0.9, n1 = 40 and (X_2 ) ̅= 13, s2 = 1.4, n2 = 60 a. Find the test statistic, b. Find the stan

Algebra ->  Probability-and-statistics -> SOLUTION: μ1 = μ2, α = 0.05. Sample statistics: (X_1 ) ̅= 16, s1 = 0.9, n1 = 40 and (X_2 ) ̅= 13, s2 = 1.4, n2 = 60 a. Find the test statistic, b. Find the stan      Log On


   

Question 879426: μ1 = μ2, α = 0.05. Sample statistics: (X_1 ) ̅= 16, s1 = 0.9, n1 = 40 and (X_2 ) ̅= 13, s2 = 1.4, n2 = 60
a. Find the test statistic,
b. Find the standardized test statistic,
c. Decide whether the standardized test statistic is in the rejection region,
d. Decide whether you should reject or fail to reject the null hypothesis.
The samples are random and independent.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
a. t = %2816-13%29%2Fsqrt%280.9%2F40%2B+1.4%2F60%29 = 14.01
b. p-value = 2*P(t> 14.01 when df = 98) = 2*tcdf(14.01,100,98) = 2*(basically o)
c. 0 < .05
d. reject Ho that means are equal