Question

NEED HELP ASAP Please answer all please.

a People with higher incomes might not own TVs or computers with higher incomes likely will have high-speed Internet access, which will lead to spending more time on-i O People with lower incomes might not own TVs or computers. D People who spend time at home on the Internet never watch TV r the students in your statistics class as the population and suppose they are seated in four rows of 10 comes up heads, you use the 20 students sitting in the first two rows as your sample. Ir it comes up talls, you use the 20 students sitting in the lest two rows as your sample. each. To select a sample, toss a coin. If it (a) Does every student have an equal chance of being selected for the sample? Explain. Yes, your seating location ensures an equal chance of being selected. O Yes, your seating location and the randomized coin fip ensure equal chances of being selected. No, your seating location does not ensure an equal chance of being selected (b) Is it possible to include students sitting in row 3 with students sitting in row 2 in Yes, it is possible with this described method of selection. ONo, it is not possible with this described method of selection Sometimes it is possible with this described method of selections. Yes, this is a simple random sample ONo, this is not a simple random sample. It is a stratified sample. No, this is not a simple random sample. It is a dluster sample. No, this is not a simple random sample. It is a systematic sample. (c) Describe a process you could use to get a simple random sample of size 20 from a class of size 40. Assign each student to a pair 1, 2,. .. .20 and use a computer or a random-number table to select 10 pairs. Assign each student a number 1, 2, , 20 and use a computer or a random-number table to select 10 students Assign each student a group 1, 2, 3, 4 and use a computer or a random-number table to select 2 groups. Assign each student a number 1, 2,., 40 and use a computer or a random-number table to select O 3. What is the average miles per gallon (mpg) for all new cars? Using Consumer Reports, a random sample of 35 new cars gave an average of 21.1 mpo () Identily the varilable. ) all cars o miles per gallon total miles new cars (b) Is the variable quantitative or qualitative? O qualitative quantitative both quantitative and qualitative (c) What is the implied population? all cars with average miles per gallon all new cars O the 35 new cars that were examined cars Notes O Ask Your In each of the following situations, the sampling frame does not match the resulting in ge. Give examples of population members that might have been omitted. (a) The population consists of all 250 students in your large statistics class, You plan to obtain a simple random sample of 30 students by using the sampling frame of students present next Monday. (Select all that apply. Students who are skipping class cannot be sampled Students who are not taking statistics cannot be sampled Home-schooled students cannot be sampled Students who are on a school trip cannot be sampled. Students who are out sick cannot be sampled. Dropouts cannot be sampled (b) The population consists of all 15-year-olds living in the attendance district of a local high school. You plan to obtain a simple random sample of 200 such residents by using the student roster of the high school as the sampling frame. (Select all that apply.) Dropouts cannot be sampled. D Students who are skipping class cannot be sampled. n Students who are out sick cannot be sampled. Home-schooled students cannot be sampled. Students who are on a school trip cannot be sampled. Need Help?

Answer 1