Done 3 myopenmath.com AA Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 1 v B 0/1 pt '0 3 8 99 G) Details In a study, the data you collect is Weight in pounds. This data is: O Quantitative O Qualitative Question Help: Video 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done EB] VIE' 0 Question 2 v B 0/1 pt '0 3 8 99 G) Details In a survey of 1583 adults, 40% responded "yes" to the survey question. How many adults answered "yes"? (round to the nearest whole person as needed) 633.2 Question Help: Video 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done EB] 'l'' 0 Question 11 v B 0/1 pt '0 3 8 99 G) Details Which source of bias is most relevant to the following situation? A researcher wants to determine average household size and asks all students at the local college how many people are in their local family. 0 self-interest study 0 voluntary response bias 0 nonresponse bias or missing data 0 perceived lack of anonymity O loaded or leading question Question Help: El Video 1 El Video 2 8 Message instructor Submit Question Done 3 myopenmath.com AA Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done EB] VIE' 0 Question 7 v B 0/1 pt '0 3 8 99 G) Details Convert 0.0031 to an equivalent percentage. (do not enter the % sign) Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done EB] 'l'' 0 Question 3 v B 0/1 pt '0 3 8 99 G) Details Convert the fraction 5 to an equivalent percentage. Report exact answer (give all decimal places without rounding). 10 _ (do not enter the % sign) Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 7 v B 0/1 pt '0 3 8 99 G) Details In a study, the data you collect is weight of a penny (in g). What type of data is this? O qualitative (categorical) O quantitative Question Help: Video 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 9 v B 0/1 pt '0 3 8 99 G) Details The State Education Department requires local school districts to keep these records on all students: age, race or ethnicity, days absent, current grade level, standardized test scores in reading and mathematics, and any disabilities or special educational needs the student may have. Which of the following are categorical (or qualitative) variables in these records? 0 Mathematics Test Score 0 Student Name C] Disabilities or Special Needs 0 Reading Test Score 0 Days Absent 0 Age 0 Race or Ethnicity 0 Current Grade Level Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done EB] VIE' 0 Question 4 v B 0/1 pt '0 3 8 99 G) Details 153 Convert the fraction to an equivalent percentage. Report your answer accurate to one decimal place. = 0.02825 % 5415 (do not enter the % sign) Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 16 v B 0/1 pt '0 3 8 99 G) Details Determine whether the value is a parameter or statistic: The average GPA of a sample of students from this state is 3.08. O Statistic O Parameter Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done EB] 'l'' 0 Question 9 v B 0/1 pt '0 3 8 99 G) Details Which source of bias is most relevant to the following situation: A group of first time offenders are asked to rate their court- appointed defense attorney while their case is still being argued in court. 0 self-interest study 0 voluntary response bias 0 nonresponse bias or missing data 0 perceived lack of anonymity O loaded or leading question Question Help: El Video 1 El Video 2 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 3 v B 0/1 pt '0 3 8 99 G) Details Determine whether the value is a parameter or statistic In a weight loss research study the sample of 50 women lost an average of 2.5 pounds 0 Statistic O Parameter Question Help: lg Read 8 Message instructor Submit Question myopenmath.com Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done (E) \"'5' 0 Question 21 v B 0/1 pt 0 3 8 99 G) Details Select the sampling method being used in each of the following scenarios. 1. The Washington Post website recently posted the following question on its website for visitors to complete. Will Rep. Paul Ryan's anti-poverty proposal help the poor? Yes No m s.........m....... O Voluntary response sampling O Quota sampling 0 Multistage sampling 0 Convenience sampling 2. The Gallup Polling Organization uses random digit dialing to select a sample. This involves determining the telephone exchanges used in the geographic area of interest and using a computer to randomly generate four-digit suffixes. O Voluntary response sampling O Random sampling O Quota sampling O Convenience sampling a A II . - I - . - . - Anna Done 3 myopenmath.com AA C Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 15' 0 Question 13 v B 0/1 pt '0 3 8 99 G) Details An auto analyst is conducting a satisfaction survey, sampling from a list of 10,000 new car buyers. The list includes 2,500 Ford buyers, 2,500 GM buyers, 2,500 Honda buyers, and 2,500 Toyota buyers. The analyst selects a sample of 400 car buyers, by randomly sampling 100 buyers of each brand. Is this an example of a simple random sample? 0 Yes, because each buyer in the sample had an equal chance of being chosen. 0 Yes, because car buyers of every brand were equally represented in the sample. 0 No, because every possible 400-buyer sample did not have an equal chance of being chosen. 0 No, because the population consisted of purchasers of four different brands of car. Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 3 v B 0/1 pt '0 3 8 99 G) Details Determine whether the value is a parameter or statistic In a weight loss research study the sample of 50 women lost an average of 2.5 pounds 0 Statistic O Parameter Question Help: lg Read 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 5 v B 0/1 pt '0 3 8 99 G) Details Does this describe an observational study or an experiment? The growth rate of bacteria is compared before and after adding alcohol 0 Observational Study 0 Experiment Question Help: El Video 1 El Video 2 8 Message instructor Submit Question 1:30 5G Done myopenmath.com AA C Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done & Vo . . . Question 10 B 0/1 pt '0 3 8 99 G) Details In a study, the data you collect is Gender. This data is: O Quantitative O Qualitative Question Help: Video 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 8 v B 0/1 pt '0 3 8 99 G) Details Because of the difficulty of weighing a bear in the woods, researchers caught and measured 54 bears, recording their weight, neck size, length, and sex. They hoped to find a way to estimate weight from the other, more easily determined quantities. Which of the following are quantitative variables for this study? 0 Weight 0 Length 0 Bear 0 Neck Size 0 Sex Question Help: Video 8 Message instructor Submit Question Done 3 myopenmath.com AA Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 2 v B 0/1 pt '0 3 8 99 G) Details In a study, the data you collect is Age in years. This data is: O Quantitative O Qualitative Question Help: Video 8 Message instructor Submit Question Done 3 myopenmath.com AA Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done EB] VIE' 0 Question 8 v B 0/1 pt '0 3 8 99 G) Details Convert 0.272 to an equivalent percentage. (do not enter the % sign) Question Help: 8 Message instructor Submit Question myopenmath.com Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done [SJ 110' 0 Question 11 v E 0/1 pt 0 3 8 99 (D Details In 2010, the Pew Research Center questioned 1979 adults in the US. to estimate the proportion of the population favoring marijuana use for medical purposes. It was found that 71% are in favor of using marijuana for medical purposes. State the individual, variable, population, sample, parameter and statistic. 0 Sample 0 Parameter - 0 Variable c Statistic - 0 Population o Individual . The 71% in favor of using marijuana in the US Um . Favoring marijuana use for medical purposes The 1979 adults in the US surveyed . All adults in the U.S. 0- 9 one adult in the US 5 7"! The 71% in favor of using marijuana in the study. Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 12 v B 0/1 pt '0 3 8 99 G) Details Would the following method produce a random sample of a school population of 1000 students? Answer Yes or No. All students with last names beginning with the letter M. O Yes O No Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 18 v B 0/1 pt '0 3 8 99 G) Details A researcher wants to determine if a new drug lowers the blood pressure of patients with high blood pressure. The patients are randomly selected to be in the study and they pick which group to be in. Is this a randomized experiment? Why or why not? C no, since the treatment is not randomly selected by the researcher 0 yes, since the treatment is randomly selected by the researcher 0 yes, since the treatment is chosen by the person in the study Question Help: El Video 8 Message instructor Submit Question Done 3 myopenmath.com AA C Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 19 v B 0/1 pt '0 3 8 99 G) Details A mathematics instructor wants to see if a computer homework system improves the scores of the students in the class. The instructor teaches two different sections of the same course. One section utilizes the computer homework system and the other section completes homework with paper and pencil. Are the two samples matched pairs? Why or why not? 0 no, two measurements of the same variable have been taken on the same object 0 yes, two measurements of the same variable have been taken on the same object 0 no, two measurements of the same variable have not been taken on the same object or matched objects 0 no, measurements of two different variables were taken on each object 0 yes, two measurements of the same variable have been taken on different objects that have been matched based on some criteria Question Help: Video 8 Message instructor Submit Question Done 3 myopenmath.com AA Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] VIE' 0 Question 14 v B 0/1 pt '0 3 8 99 G) Details In a study, the data you collect is Favorite candy bar. What is the level of measurement? O nominal O ordinal O interval O ratio Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] 'l'' 0 Question 8 v B 0/1 pt '0 3 8 99 G) Details Because of the difficulty of weighing a bear in the woods, researchers caught and measured 54 bears, recording their weight, neck size, length, and sex. They hoped to find a way to estimate weight from the other, more easily determined quantities. Which of the following are quantitative variables for this study? 0 Weight 0 Length 0 Bear 0 Neck Size 0 Sex Question Help: Video 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done EB] 'l'' 0 Question 1 v B 0/1 pt '0 3 8 99 G) Details Define "statistics." 0 Statistics is the study of how to best understand numbers. O Statistics is the study of how to best read tables and graphs O Statistics is how to best use numbers to persuade others 0 Statistics is the study of how to best collect, analyze, and draw conclusions from data. Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done EB] 'l'' 0 Question 13 v B 0/1 pt '0 3 8 99 G) Details For the scenario, determine if the survey is a random survey or a biased survey. Explain your reasoning. 6. A researcher wants to understand more about the career goals of students at Woods Cross High School. Woods Cross High School has about 1,500 students. The researcher puts the names of all 1,500 students into a box and randomly draws out 250 students to survey. This survey is a 0 Not Enough Information to Tell 0 Biased Survey 0 Random Survey Why do you think so? 0 Not everyone has equal chance of being surveyed. 0 Leading question. 0 Prize was offered. 0 Everyone has equal chance of being surveyed. Question Help: 8 Message instructor Submit Question m @ Done 3 myopenmath.com AA Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done EB] VIE' 0 Question 5 v B 0/1 pt '0 3 8 99 G) Details Convert 0.4% to an equivalent decimal. Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] VIE' 0 Question 15 v B 0/1 pt '0 3 8 99 G) Details Is this value from a discrete or continuous data set. The average weight of newborn babies in ounces O Discrete 0 Continuous Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA CL (ONO m s.........m....i.... 0 Voluntary response sampling 0 Quota sampling 0 Multistage sampling 0 Convenience sampling 2. The Gallup Polling Organization uses random digit dialing to select a sample. This involves determining the telephone exchanges used in the geographic area of interest and using a computer to randomly generate four-digit suffixes. 0 Voluntary response sampling 0 Random sampling 0 Quota sampling 0 Convenience sampling 3. A pollster is planning to interview 1000 people in a town known to be 45% Democrat and 55% Republican. The pollster has been instructed to interview 450 Democrats and 550 Republicans. 0 Random sampling 0 Convenience sampling 0 Quota sampling 0 Voluntary response sampling Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] VIE' 0 Question 17 v B 0/1 pt '0 3 8 99 G) Details Is the following value from a discrete or continuous data set? The circumference of a volleyball O Discrete 0 Continuous Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done EB] VIE' 0 Question 12 v B 0/1 pt '0 3 8 99 G) Details When only a small percentage of participants of a randomly selected sample choose to respond(participate) what kind of skew results? :1 Question Help: 8 Message instructor Submit Question 1:17 5G Done myopenmath.com AA C Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done Vo . . . Question 4 B 0/1 pt 0 3 8 99 G) Details Match the name of the sampling method descriptions given. Situations - c separating all students by grade level, and selecting 10 students from each grade - c randomly select two tables in the cafeteria and survey all the people at those two tables 0 number every name on a list and use a random number generator to select the first 50 numbers - 0 call every 15th phone number on every 5th page of the phone book - 0 ask all the students in your math class Sampling Method . Systematic 0'9) . Cluster Convenience P d. Stratified e. Simple Random Done 3 myopenmath.com AA Chapter 1.1 Homework Score: 0/13 0/13 answered Progress saved Done [a] VIE' 0 Question 6 v B 0/1 pt '0 3 8 99 G) Details What is 72 % of 370? Question Help: 8 Message instructor Submit Question Done 3 myopenmath.com AA CL Chapter 1.2 - 1.3 Homework Score: 0/21 0/21 answered Progress saved Done EB] VIE' 0 Question 10 v B 0/1 pt '0 3 8 99 G) Details Determine whether the value 50% is a parameter or statistic: 50% of College A's students are women O Statistic O Parameter Question Help: Video 8 Message instructor Submit