View Answered Questions
No. & Date Asked  Question 

# 182 :: 5/5/08

When would you use a hypothesis test for the difference in two population proportions at your place of employment, in your education, or in politics?. . .
Hypothesis Test,
TwoProportion Test 
# 208 :: 5/27/08

I am comparing 2 proportions of patients (before and after the introduction of a new qualityofcare project). The project is expected to reduce the p. . .
1Sided Test,
Hypothesis Test 
# 218 :: 6/5/08

what are the key terms in a verbal hypothesis that signify whether you are conducting a onetailed or twotest? Give an example and explain your answe. . .
Hypothesis Test,
OneTailed Area 
# 261 :: 7/1/08

If your hypothesis is not correct, can the data collected still be used within a subsequent analysis.. . .
Hypothesis Test,
pvalue 
# 345 :: 8/14/08

What are the 5 steps involved in hypothesis testing using the traditional/classical method; Can you use a simple real world example to explain it to m. . .
Null Hypothesis ,
Alternative Hypothesis ,
Hypothesis Test,
Steps in Hypothesis Test 
# 416 :: 9/27/08

Twenty students randomly assigned to an experimental group receive an instructional program; 30 in a second group do not. After 6 months, both groups . . .
2sample ttest,
Hypothesis Test 
# 564 :: 12/19/08

For each of the following situations, indicate whether an error has occurred and, if so, indicate what kind of error (Type I or Type II) has occurred.. . .
Type I Error,
Type II Error,
Power,
Hypothesis Test 
# 576 :: 1/16/09

TRUE or FALSE
The level of significance is the probability that a true hypothesis is rejected.
A Type one error is also referred to as an alpha r. . .
Hypothesis Test,
Alternative Hypothesis ,
Alpha,
Null Hypothesis 
# 667 :: 4/11/09

If the pvalue is greater than the level of significance α , then the decision must be to reject Ho.
A) True
B) False. . .
pvalue,
Hypothesis Test 
# 669 :: 4/13/09

You have failed to reject the null hypothesis when it is false, and therefore you have made a
A) Type A correct decision.
B) Type B corr. . .
Type I Error,
Type II Error,
Hypothesis Test 
# 672 :: 4/13/09

In Meijer supermarket, the customer's waiting time to check out is approximately normally distributed with a standard deviation of 2.5 minutes. A samp. . .
Hypothesis Test 
# 730 :: 5/23/09

Describe the steps in formal hypothesis testing. Make at least one comment for each step.. . .
Steps in Hypothesis Test,
Hypothesis Test 
# 833 :: 12/9/09

suppose that the census indicates the average American earns $36,345.45 per year. You are interested in the whether people who majored in political s. . .
Hypothesis Test,
1sample ttest 
# 834 :: 12/9/09

You are interested in testing the hypothesis that men have greater levels of political participation than women, so you survey 332 men and 375 women . . .
2sample ttest,
Hypothesis Test 