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1. Polls concerning the president's approval
rating were taken in the state of Michigan. Which of the following is a 95%
confidence interval of the difference in approval ratings within the state?

2.If the 95% Confidence Interval for problem #1 turned out to be
(.234,.434) what would be your conclusion regarding the president's approval
rating?

No difference between approval
and disapproval since 0 is not in the Confidence Interval.
There is a difference
between approval and disapproval since 0 is not in the Confidence Interval
No difference between
approval and disapproval since 0 is in the confidence interval
There re too many "Didn't Answers."

3. Consider the following data from a weight loss clinic. This
experiment has been designed to be a Randomized Pair Design. In performing
the Sign Rank Wilcoxon test, what is the test statistic W given the
following data?