1. [-12 Points] BBBASICSTAT8 1.R.010. A radio talk show host asked listeners to respond either yes or no to the question, "Is the candidate who spends the most on a campaign the most likely to win?" Fifteen people called in and nine said yes. What is the implied population? ' ' all adults ' all radio listeners " all callers " all listeners of the radio talk show What is the variable? " number of callers " number of listeners opinion of a listener " opinion of a caller Can you detect any bias in the selection of the sample? " Yes, there is a systematic bias against those that are not listening to the talk show. No, there is no bias in the selection of this sample. ' Yes, voluntary response. Those with the strongest opinions are most likely to call in. '\\ Yes, nonresponse. Many listeners may not call in. 2. [-I2.27 Points] DETAILS BBBASICSTAT8 1.R.009. MY NOTES I You are conducting a study of students doing work-study jobs on your campus. Among the questions on the survey Instrument are the follownng. A. How many hours are you scheduled to work each week? Answer to the nearest hour. B. How applicable is this work experience to your future employment goals? Respond using the following scale: 1: not at all, 2 = somewhat, 3 = very (a) Suppose you take random samples from the following groups: freshmen, sophomores, juniors, and seniors. What kind of sampling technique are you using (simple random, stratied, systematic, cluster, multistage, convenience)? ' ' cluster sample systematic sample convenience sample " simple random sample stratified sample " multistage sample (b) Describe the individuals of this study. " Students on all campuses with work-study jobs. ' Students on your campus. " Students on your campus with work-study jobs. ' Studenls on all campuses. (c) What is the variable for question A? ' ' type of job hours scheduled number of students who work " total hours worked Classify the variable as qualitative or quantitative. neither quantitative nor qualitative Classify the variable as qualitative or quantitative. " neither quantitative nor qualitative both qualitative and quantitative qualitative quantitative What is the level of measurement? ratio \\ interval ' \\ ordinal " nominal (d) What is the variable for question B? ' ' rating of applicability of work experience to future employment ' rating of satisfaction of work experience for future employment hours scheduled number of students who work Classify the variable as qualitative or quantitative. neither quantitative nor qualitative quantitative qualitative ' ' both qualitative and quantitative What is the level of measurement? ratio ' interval ' ' ordinal ' nominal (e) Is the proportion of responses "3 = very\" to question B a statistic or a parameter? neither a statistic nor a parameter 1.... a \"yummy-t. and a inhabit-bi;- Classify the variable as qualitative or quantitative. neither quantitative nor qualitative quantitative qualitative both qualitative and quantitative What is the level of measurement? " ratio ' ' interval ordinal nominal (e) Is the proportion of responses "3 = very\" to question B a statistic or a parameter? " neither a statistic nor a parameter both a parameter and a statistic statistic parameter (f) Suppose only 40% of the students you selected for the sample respond. What is the nonresponse rate? % Do you think the nonresponse rate might introduce bias into the study? Explain. No, the people choosing not to respond probably don't have characteristics that would bias the study. " Yes, the people choosing to respond may have some characteristics that would bias the study. No, the people choosing to respond probably don't have characteristics that would bias the study. Yes, the people choosing not to respond may have some characteristics that would bias the study. (9) Would it be appropriate to generalize the results of your study to all work-study students in the nation? Explain. " No, the sample frame is restricted to one campus. Yes, the sample is random so the results can be applied anywhere. Yes, the sample frame is for all campuses. No, results only apply to the students sampled