In a survey conducted by a reputable marketing agency,267267of10001000adults 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). here to view the standard normal distribution table (page 2).(a) what is the sample in this study? what is the population of interest? determine the sample in this study. select the correct choice below and, if necessary, fill in the answer box within your choice. a.the sample is all adults with a cell phone. b.the sample is all adults 19 years of age or older. c.the sample is all adults. d.the sample is thenothingadults 19 years of age or older.(type a whole number.)determine the population of interest. select the correct choice below and, if necessary, fill in the answer box within your choice. a.the population is all adults with a cell phone. b.the population is all adults 19 years of age or older. c.the population is all adults. d.the population is thenothingadults 19 years of age or older.(type a whole number.)(b) what is the variable of interest in this study? is it qualitative or quantitative? the variable of interest is▼the age of the respondent. the adults in the sample. bringing one's cell phone every trip to the bathroom. this variable is▼qualitative with two ▼numerical measures of individuals are provided. individuals are classified based on a characteristic.(c) based on the results of this survey, obtain a point estimate for the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom. modifyingabove p with caretpequals=nothing(round to three decimal places as needed.)(d) explain why the point estimate found in part (c) is a statistic. explain why it is a random variable. what is the source of variability in the random variable? why is the point estimate found in part (c) a statistic? a. its value is based on a sample. b.it is information obtained from a survey. c.it is being used to make inferences. d.its value may change depending on the individuals in the survey. e.the sample size is large. why is the point estimate found in part (c) a random variable? a. the sample size is large. b.its value is based on a sample. c.it is being used to make inferences. d.its value may change depending on the individuals in the survey. e.it is information obtained from a survey. what is the source of variability in the random variable? a. random errorsb. the individuals selected to be in the studyc. the question asked in the surveyd. the sample size(e) construct and interpret a9595%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.)a. there is anothing%chance the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom is betweennothingandnothing. b.we arenothing%confident the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom is betweennothingandnothing.(f) what ensures that the results of this study are representative of all adults 19 years of age or older? a. random samplingb. the high confidence levelc. the large sample sized. sampling from adults 19 years of age or older