View Answered Questions
| No. & Date Asked | Question |
# 670 :: 4/13/09
 |
Assume that z is the test statistic and calculate the value of z∗ for testing the null hypothesis Ho: μ =150.0 when σ = 4.5, n=15, x(b. . .
test statistic,
z-test |
# 555 :: 12/14/08
|
Complete the following:
a. Select a variable. Compare the mean of the variable for a sample of 30 for one group with the mean of the variable for a . . .
2-sample t-test,
2-proportion test,
2-sample z-test,
z-test |
# 344 :: 8/14/08
|
Explain the difference between testing a single mean and testing the difference between two means. What two assumptions must be met when one is using . . .
Standard Deviation,
z-test,
Normally Distributed,
Homogeneity of Variance |
# 330 :: 8/9/08
|
If you had a sample size of 50 and did not know the standard deviation of the population, would you use a t or a z statistics in your analysis? Why?. . .
t-test,
z-test |
