Hawkes Learning 8.1 Latest Version Graded A

Hawkes Learning 8.1 Latest Version Graded A Population group of individuals of the same species that live in the same area Data Facts and statistics collected together for reference or analysis Census Gathering data from every member of the population Parameter numerical summary of a population Sample a subset of the population sample statistic a numerical measure that describes an aspect of a sample (Ex. Average 3.75) representative sample A sample that reflects the characteristics of the population from which it is drawn random sample method of selecting from a population in which each person has an equal probability of being selected stratified sample Members are divided into two or more subgroups called strata. Share Age,Gender,Race, etc cluster sample a sampling design in which entire groups are chosen at random systematic sample Chosen by selecting every Nth member of the population convenience sample only members of the population who are easily accessible are selected Which Study Uses Sample Statistic? *Options for Various questions find the correct wording* Parkland Hospital Performs 15,000 births a year. Of 1000 subjects in a study on multiple births, 38 gave birth to twins 1000 of the 1883 participants in last years ironman in Kona, Hawaii were interviewed. 68% of those interviewed said they became interested in triathlons after first competing in marathons. Of 351 dog owners who were surveyed, 70 reported owning two dogs. as part of her senior project, Kaisa asked 84 of her classmates if they voted in the last presidential election Every Nth Member Systematic which study uses a population parameter *Options for Various questions find the correct wording* A study promoted by the increase in the use of assisted reproductive technology looked at hospital records across the country. the report stated that an estimated 3.2% of births in the U.S. last year resulted in twins. An estimated 15% of Americans don't use internet. In 2001, 78% of children diagnosed with cancer were in remission after five years, and this umber is improving. The average finish time for the ironman, kona was 11:32 for the 1883 finishers, with an average swim time of 1:14, an average bike time of 5:53, and an average run time of 4:14 a poll of the entire student body found that 32% of students at Wilson Abner college voted in the last presidential election A sample in which every member of the population has an equal chance of being selected Random Sample A poll was taken of 1215 employees in a local business. the average price of cars owned by those surveyed was $32,799 Population: All employees; Sample: 1215 employees polled; Sample Statistic: $32,799 A sample in which members of the population are divided into two or more groups that share similar characteristics. A random sample from each group is then drawn. Stratified Sample A local news agency is interested in studying unemployment rates across the state. The researchers will randomly select 1000 people from each state county and gather all relevant data from those selected Stratified in the 1960's, a poll of 2617 homeowners in the united states resulted in a report that average price of house in the U.S. was $18,500 Population: U.S. Homeowners; Sample: 2617 homeowners polled; Population Parameter: $18,500 A subset of a particular group of interest in a statistical study Sample A soda bottling company will test a random sample of 100 bottles an the production line to assure the product meets quality standards. Random The average number of hours students in your statistics class study per week is 10.1 Population: Students in your statistics class; Sample: Not given; Population Parameter: 10.1 A pharmaceutical company has found 1500 people willing to participate in a sleep study, but can only select 150 fro the actual study. The 1500 respondents can be grouped by hometown one of the hometown groupings includes 150 people who adequately represent the variety of all people willing to participate Cluster A sample in which every member of the population has an equal chance of being selected Random Sample a soda bottling company needs to test the quality of the bottles the produce. there are a three bottling machines, each producing the same size and quantity of bottles Cluster 841 instructors at a local university were surveyed, 67% of them teach 2 or ,more classes Population: Instructors at local university; Sample: 841 instructors surveyed; Sample statistic; 67% The English department is interested in overall performance in its entry-level 101 course. The department chair selects the first 300 students' final grades sorted alphabetically by name and calculated the average final grade Convenience A local polling center collects data from voters by interviewing every fifteenth person to exit the polling station after voting. Systematic Numerical descriptor of a student of a particular group of interest Sample Statistic A soda bottling company will randomly test 10 bottles from each of its 20 machines to assure the product meets quality standards Stratified A soda bottling company needs to test the quantity of the bottles they produce. There are five machines, each filling a different size of bottle Stratified A sample in which every Nth member of the population is selected Systematic Sample an advertising agency wants to analyze the ages of typical moviegoers in a suburban area. Each box office in the area asked ticket holders to note their age on their ticket stub. all stubs were collected and sent to the agency in a single container, but they only selected some for analysis Random The English department is interested in overall performance in its entry-level 101 course. The department chair randomly selects 10 students from each of the 30 sections offered and calculates the average final grade Stratified A Sample in which members of the population are easy fro the researcher to select Convenience Sample A politician wants to survey his constitutes on key issues. His voting district contains five neighborhoods of generally different age, ethnicity, and issues affect all voters, and no single neighborhood contains a representative sample Stratified The English department is interested in overall performance in its entry-level 101 course. The department chair selects every tenth student's final grade from a list of all students enrolled in the course and calculates the average final grade Systematic A statistics seminar of 350 students is broke down into smaller sections with a teaching assistant. 30 students in one section were surveyed and the average time they spent studying per week was 10.1 Population: 350 Students in the seminar; Sample: 30 students in one section;Sample Statistic: 10.1