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1 foot 2 feet 0 1 0 1 0 1 0 1 1 1 1 1...

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NEED HELP WITH QUESTION 3 & 4.

EXPERIMENT 1

In class one day last semester, I randomly assigned students to one of two groups as they came into class. The first person into the room was assigned to group 1, the second person to group 2, the third to group 1, and so on. Members of the first group stood on one foot and members of the second group stood on two feet, all while tossing a ball into a wastebasket positioned 5 feet away. The number of baskets each participant made out of 3 attempts is listed in the table.

2) Give the M and SD for each group.

1 foot

2 feet

Mean

SD

  

EXPERIMENT 2

This semester, I asked the class to line up in order from shortest to tallest. Each student in a pair was then randomly assigned to one of two groups. Members of the first group stood on one foot and members of the second group stood on two feet while tossing a ball into a wastebasket positioned 5 feet away. The number of baskets each participant made just happened to be identical to the number of baskets the participants made last semester. In other words, use the same data set you used in Experiment 1.

2) Give the M and SD for each group.

1 foot

2 feet

Mean

SD

  

3) Compare experiment 1 with experiment 2.

Experiment 1

Experiment 2

What are the t-obtained values?

What are the degrees of freedom?

What are the t-critical values?

What are the significance levels?

4) Which study is more powerful? Why did one experiment turn out significant and not the other when both use the same data?

NEED HELP WITH QUESTION 3 & 4.

math   Statistics-And-Probability   
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