Question

In a survey conducted by a reputable marketing agency, 255 of 1000 adults 19 years of age or older confessed to bringing and using their cell phone every trip to the bathroom (confessions included texting and answering phone calls). Complete parts (a) through (f) below. A. Its value may change depending on the individuals in the survey. OB. Its value is based on a specific sample. O C. All pieces of information obtained from surveys are statistics. OD. It is being used to make inferences. O E. The sample size is large. What is the source of variability in the random variable? A. The marketing agency The individuals selected to be in the study O C. The question asked in the survey OD. The sample size Incorrect: (e) Construct and interpret a 95% confidence interval for the population proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom. Select the correct choice below and fill in any answer boxes within your choice. (Type integers or decimals rounded to three decimal places as needed. Use ascending order.) O A. There is a % probability the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom is between and OB. We are confident the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom is between and 1 Click to select and enter your answer(s) and then click Check Answer. 1)

Answer 1