1.
True or False?
2.
True or False?
The 95% confidence interval for the difference between two treatment means extends from-2.50 to +5.50. Based on this information, you can conclude that there is no significant difference between the treatments at the .05 level of significance True O False
Homework Answers
1. We use t statistics, when population variance (or population standard deviation) is not known, hence we will use sample variance (or standard deviation) to compute a t statistics
So answer is True
2. If a 95% confidence interval includes the null value, then there is no statistically meaningful or statistically significant difference between the groups.
As the case is same here we have 0 included in the interval ie -2.50 to +5.50
So there is no significant difference between the treatments
Answer is True.
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