Two Procedures
When performing a two-parameter hypothesis test on the mean, how is the null hypothesis stated?
H0: µ1 - µ2 = 0 H0: µ1 = µ2
What is true when performing a two-parameter hypothesis test?
It is rare to have an unknown population mean and a known population variance. Both the population mean and population variance are unknown
What is true with regard to performing a two-parameter hypothesis test?
The rejection region can be used.
What is true about the sample sizes of a two-parameter hypothesis test on the mean?
They can be the same.
What is true with regard to performing a two-parameter hypothesis test?
The rejection region can be used. The p-value method can be used.
What is the critical value for the given sample parameters with a significant level of 0.05 for a two-tailed test?
103/50
x1=50, n1=16, s1=3, x2=45, n2=11, and s2=2 What is the standardized t-test for a hypothesis test for the sample parameters?
182/100
When performing a two-parameter hypothesis test on the mean, how is the alternative hypothesis stated?
H1: µ1 - µ2 < 0 H1: µ1 - µ2 ≠ 0
What is the function of a two-parameter hypothesis testing?
Tests the difference between the same parameter from two different populations Compares a population parameter with its corresponding parameter of another population
When performing a two-parameter hypothesis test using the rejection region, the last step is to
calculate the standardized t-test
What is the degrees of freedom (df) for a t-test for the difference between two means?
n1 + n2 - 2 Two less than the sum of the two sample sizes
When performing a two-parameter hypothesis test using the p-value method, the first step is to
state the null and alternative hypotheses
