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1. Determine whether the following measure is a parameter or a statistic . (a) The number of seals at the Aquarium of the Pacific is

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1. Determine whether the following measure is a parameter or a statistic . (a) The number of seals at the Aquarium of the Pacific is 15. (b) In a AAA Foundation for Traffic Safety survey, 21% of the respondents said that they recently texted or e-mailed while driving . (c) Among the flights included in the sample of flights in a data set, 21% arrived late. (d) The average atomic weight of allelements in the periodic table is 134 .455 unified atomic mass units . (e) For the following write the name of the summary denoted by the variable and determine whether it is a statistic or parameter . i. X ii. s iii . $2 iv . H V. O 2. Aftertheforcefulreplacementofthe CEO atacertain company, thehuman resourcedepartmentwantsto conductasurveyregarding workermorale. Thedepartmenthadanalphabeticallistofall1253employees at the company and wants to conduct a systematic sample. (a) Determine k if the sample size is 15 . (b ) Determine the individuals who will be administered the survey. 3. For the following problems determine the type ofbias (Sampling, Nonresponse, Response ) present in the survey and suggest a remedy. (a) The village of Oak Lawn wishes to conduct a study regarding the income level of households within the village . The village manager selects 10 homes in the southwest corner of the village and sends an interviewer to the homes to determine household income. (b ) An antigun advocate want to estimate the percentage of people who favor stricter gun laws. He conducts a nationwide survey of 1203 randomly selected adults 18 years and older. The interviewer asks the respondents "Do you favor harsher penalties for individuals who sell guns illegally ?" (c) Cold Stone Creamery is considering opening a new store in O'Fallon . Before opening , the company wants to know the percentage of households in O'Fallon that regularly visit an ice cream shop. The market researcher obtains a list of households in O'Fallon, randomly selects 150, and mails a ques- tionnaire that asks about ice cream eating habits and flavor preferences . Of the 150 questionnaires mailed , 4 are returned 4. The math and reading achievement scores form the National Assessment of Educational Progress (the NAEP is a nationally representative assessment of what U.S. students know and can do in various subjects) for selected states are listed below

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