Question

Chapter 05.2 Exercise Question 21 

5.2.21 

A 2013 Gallup poll asked randomly selected U.S. adults whether they wanted to stay at their current body weight or change. One purpose was to investigate whether there was any difference between men and women with regard to this aspect. Of the 562 men surveyed, 242 wanted to stay at their current weight, whereas of the 477 women surveyed, 172 wanted to stay at their current weight.

 Use an appropriate randomization-based applet to find a p-value. Round your answer to three decimal places.

 Based on this p-value, how much evidence do you have against the null hypothesis? 

 Calculate an appropriate standardized statistic in the context of the study. 

 The p-value and standardized statistic both lead you to the same conclusion. 

 Use the 2SD method to find a 95% confidence interval for the parameter of interest.

Answer 1