Question: A researcher wants to determine if a new diet/nutrition program is effective in reducing weight in a group of 10 women age’s 25-50. Weight is measured in pounds before the program begins and after the program ends, 6 months later. The researchers believe the program will be successful in reducing weight.

Person Pre-program Post-program

A 120 90

B 131 98

C 111 83

D 150 113

E 130 100

F 140 110

G 162 125

H 175 136

I 160 145

J 145 125

1. What is the IV and scale of measurement?
2. What is the DV and scale of measurement?
3. How many levels are there of the IV and DV, if applicable?
4. What is the null hypothesis?
5. Are you making a one tailed or two tailed hypothesis?
6. What is the alternative hypothesis?
7. What statistical test would you use? (Note if this is incorrect-all else below will be assumed incorrect).
8. Calculate the appropriate statistic (Note if this is incorrect-all else below will be assumed incorrect).
9. Would you reject or retain the null hypothesis.
10. What type of error might you have made (Type I or Type 2).

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