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Participants joined a weight loss program in the spirit of the New…
Participants joined a weight loss program in the spirit of the New Year. They weighed themselves on New Years Day, and then again at the end of May.
Research Question: Are there differences in people’s weight on New Years, and weight in May?
a. Type of test needed: _______________________
b. Means of groups: New Years Weight ______ May Weight _____
c. df(s) _______ t or F value ________ p-value ______
d. Are there meaningful differences (explain how you came up with your answer) ?
2. Last year, the average weight of participants in the weight loss program was 152 in May.
Research question: Is this significantly different than the weight of our sample in May?
a. Type of test needed: _______________________
b. df(s)_______ t or F value _________ p-value ___________
c. Are there meaningful differences (explain how you came up with your answer) ?
3. Participants were surveyed on what their New Year’s Resolution was. The responses included four different categories: Going to the Gym, Better Grades, More Organized, Call Parents.
All participants were grouped into one of these four categories. Each group rated on a 1-10 scale how confident they were that they would stick with their resolution.
Research Question: Are there differences in confidence ratings, based on if a person’s resolution was going to the gym, getting better grades, being more organized, or calling their parents?
a. Type of test needed: _______________________
b. Mean ‘Confidence Rating’ for Groups: Going to the Gym______ Better Grades ______
More Organized ______ Call Parents________
c. df(s) _________ t or F value ________ p-value ______
d. Are there meaningful differences (explain how you came up with your answer) ?
4. Researchers are interested if there are relationships between age, confidence in resolution, and number of hours participants stayed up after 8:00 pm on New Year’s Eve (StayUp). Report the following relationships below.
Relationship between Age and Confidence: r = _________
What happens to Confidence if Age is increased?
Relationship between Age and StayUp: r = _________
What happens to Age if StayUp is decreased?
Relationship between Confidence and StayUp: r = __________
What happens to StayUp if Confidence is increased?
5. What are some similarities and differences between T-tests and ANOVA’s? Please at least one similarity and one difference.
Image transcription text
SPSS Statistics File Edit View Data Transform Analyze Graphs Utilities Extensions Window C X X Q 8 0 Tue
May 2 5:54 AM Exam 2 Dataset.sav [DataSet2] – IBM SPSS Statistics Data Editor A + Q Visible: 6 of 6 Variables
Age NewYea MayW Resoluti Confide StayUp var var var rW on var var var var var var var var var nc…
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