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1. Netflix sent out a survey to a random sample of their customers. The following table contains some of the data they collected. Use this table to answer the following questions. Number of people Favorite genres Subscribe to other streaming networks Last Name Age that share the account of content (like Disney+ or Amazon Prime) Smith 29 Action Yes Duda 37 2 Sports No Marketos 33 1 Action Yes Rensi 25 Comedy Yes Earley 42 3 Thriller No Кer 36 4 Family Yes a. What are the individuals in this data set? b. How many variables are represented in this table? c. What is the population of interest for this study?

1. Netflix sent out a survey to a random sample of their customers. The following table contains some of the data they collected. Use this table to answer the following questions. Number of people Favorite genres Subscribe to other streaming networks Last Name Age that share the account of content (like Disney+ or Amazon Prime) Smith 29 Action Yes Duda 37 2 Sports No Marketos 33 1 Action Yes Rensi 25 Comedy Yes Earley 42 3 Thriller No Кer 36 4 Family Yes a. What are the individuals in this data set? b. How many variables are represented in this table? c. What is the population of interest for this study?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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11:50 „ll 64%i UTF-8"Activity #1 Data and Sampling (remote) (1) Lab Activity #1: Data and Sampling Using what you learned from Chapter 1 and 2, answer the following questions. Once you have completed the lab, submit the lab activity on blackboard as a pdf, .docx or .doc file. 1. Netflix sent out a survey to a random sample of their customers. The following table contains some of the data they collected. Use this table to answer the following questions. Number of people Favorite genres Subscribe to other streaming networks Last Name Age that share the account of content (like Disney+ or Amazon Prime) Smith 29 4 Action Yes Duda 37 2 Sports No Marketos 33 1 Action Yes Rensi 25 Comedy Yes Earley 42 3 Thriller No Kerr 36 Family Yes a. What are the individuals in this data set? b. How many variables are represented in this table? c. What is the population of interest for this study? d. Is this surv an observational study or an experiment? Explain your answer. e. If instead of taking a random sample of customers, Netflix posted a survey on their website that any customer could choose to respond to. What is that type of sampling called? f. The sampling method described in part e is said to be biased. In your own words, explain what makes this a bias sampling method. 2. A local auto repair shop has 8 mechanics. Every six months they randomly sample 2 for drug testing. Assign each mechanic a numerical label and use line 120 from the random number table (on the next page) to select 2 mechanics for random drug testing. Mechanic Name Numerical Label Devin Brooks Betsy Clark Taylor Hoffman Frank Klingler Brian McMackey James Schmitz Thomas Sampson John Wang Two randomly selected mechanic's names: and 3. BestBuy is doing a drawing to giveaway 5 new big screen TV's. 750 people enter the drawing and are given a raffle ticket with a number on it. The tickets are numerically labelled from 001 to 750. Using line 127, randomly select the 5 winning ticket numbers. and 4. BestBuy was happy with how well the TV giveaway promotion went. They decide to run a similar promotion next year. They survey customers that come into their stores on Saturday mornings and ask them, "What type of products would you most like to see in a giveaway (TV, Speakers, Game Systems, ect..)?". Do you see any bias in this sampling method? Explain. TABLE A Random digits Line 05756 28713 01927 101 19223 95034 96409 12531 42544 82853 102 73676 47150 99400 27754 42648 82425 36290
Transcribed Image Text:11:50 „ll 64%i UTF-8"Activity #1 Data and Sampling (remote) (1) Lab Activity #1: Data and Sampling Using what you learned from Chapter 1 and 2, answer the following questions. Once you have completed the lab, submit the lab activity on blackboard as a pdf, .docx or .doc file. 1. Netflix sent out a survey to a random sample of their customers. The following table contains some of the data they collected. Use this table to answer the following questions. Number of people Favorite genres Subscribe to other streaming networks Last Name Age that share the account of content (like Disney+ or Amazon Prime) Smith 29 4 Action Yes Duda 37 2 Sports No Marketos 33 1 Action Yes Rensi 25 Comedy Yes Earley 42 3 Thriller No Kerr 36 Family Yes a. What are the individuals in this data set? b. How many variables are represented in this table? c. What is the population of interest for this study? d. Is this surv an observational study or an experiment? Explain your answer. e. If instead of taking a random sample of customers, Netflix posted a survey on their website that any customer could choose to respond to. What is that type of sampling called? f. The sampling method described in part e is said to be biased. In your own words, explain what makes this a bias sampling method. 2. A local auto repair shop has 8 mechanics. Every six months they randomly sample 2 for drug testing. Assign each mechanic a numerical label and use line 120 from the random number table (on the next page) to select 2 mechanics for random drug testing. Mechanic Name Numerical Label Devin Brooks Betsy Clark Taylor Hoffman Frank Klingler Brian McMackey James Schmitz Thomas Sampson John Wang Two randomly selected mechanic's names: and 3. BestBuy is doing a drawing to giveaway 5 new big screen TV's. 750 people enter the drawing and are given a raffle ticket with a number on it. The tickets are numerically labelled from 001 to 750. Using line 127, randomly select the 5 winning ticket numbers. and 4. BestBuy was happy with how well the TV giveaway promotion went. They decide to run a similar promotion next year. They survey customers that come into their stores on Saturday mornings and ask them, "What type of products would you most like to see in a giveaway (TV, Speakers, Game Systems, ect..)?". Do you see any bias in this sampling method? Explain. TABLE A Random digits Line 05756 28713 01927 101 19223 95034 96409 12531 42544 82853 102 73676 47150 99400 27754 42648 82425 36290
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