Reconsider the data from the 2013 Gallup poll that asked randomly selected U.S. adults whether they wanted
Question:
Reconsider the data from the 2013 Gallup poll that asked randomly selected U.S. adults whether they wanted to stay at their current body weight or change.
a. Use an appropriate randomization-based applet to find a p-value. Report and interpret the p-value in the context of the study.
b. Based on this p-value, how much evidence do you have against the null hypothesis?
c. Calculate an appropriate standardized statistic and interpret the standardized statistic in the context of the study.
d. Do the p-value and standardized statistic both lead you to the same conclusion?
e. Use the 2SD method to find a 95% confidence interval for the parameter of interest. Report this interval and interpret the interval in the context of the study.
f. Is your conclusion from using either the p-value or the standardized statistic consistent with your finding from the 95% confidence interval? How are you deciding?
g. State a complete conclusion about this study, including significance, estimation (confidence interval), causation, and generalization. Be sure to explain how you are arriving at your conclusion.
Step by Step Answer:
Introduction To Statistical Investigations
ISBN: 9781118172148
1st Edition
Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy