In a survey conducted by a reputable marketing agency, 263 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. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2); ' Its Value IS 08560 on a sample. It is information obtained from a survey. Why is the point estimate found in part (c) a random variable? It is information obtained from a survey. The sample size is large. Its value may change depending on the individuals in the survey. It is being used to make inferences. Its value is based on a sample. What is the source of variability in the random variable? Random errors The sample size The question asked in the survey V The individuals selected to be in the study (e) Construct and interpret a 95% condence 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 ll in any answer boxes within your choice. (Type integers or decimals rounded to three decimal places as needed. Use ascending order.) 15":- 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 C3 B- We are % condent the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom is between and