Refer to the previous exercise about the study of the relationship between dietary restraint and energy expenditure.

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Refer to the previous exercise about the study of the relationship between dietary restraint and energy expenditure. Another response variable the researchers were interested in was the estimation of energy intake. After a session of exercising, each participant was given a meal and then asked how many calories they thought they had consumed, and according to their response they were classified into one of the three categories: underestimation, within 50% estimation, or overestimation. Here are the summarized data:

High restraint Low restraint Total Underestimation 17 35 18 Within 50% 28 13 41 estimation Overestimation 2 4 Total 48 3


a. State the appropriate null and alternative hypotheses in words.

b. Explain why it would NOT be okay to use the theory-based method to find a p-value for this study.

c. Use an appropriate applet (for example, the Multiple Proportions applet) to find and report the following from the data: (i) the name of a statistic and its numeric value and (ii) the simulation based p-value.

d. State a complete conclusion about this study, including significance, causation, and generalization. Be sure to explain how you are arriving at your conclusion.

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Introduction To Statistical Investigations

ISBN: 9781118172148

1st Edition

Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy

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