Please help! URGENT STATS HELP!

perdisco Introductory Statistics Third Edition Perdisco Submit answers Bookmark Assessment Below is a set of assessable homework questions on this topic, selected by your professor. Take care! Do not submit your answers until you have read all the instructions and answered the questions carefully. When you submit your answers, you will receive immediate feedback. A Navigating this page: Submit answers: Submit your answers for immediate grading Bookmark: Save this question set so that you can come back to it later 1 of 3 ID: MS P.CAP.01.0020A [2 marks] presented here: A group of 1000 people are surveyed and asked two questions; whether they own a computer and whether they use a computer at their workplace. The results are . 567 people own a computer and use a computer at work . 143 people own a computer but do not use a computer at work . 136 people do not own a computer but use a computer at work . 154 people do not own a computer and do not use a computer at work Define the events A and B to be: . A: a randomly chosen person owns a computer . B: a randomly chosen person does not use a computer at work Jessie was studying this situation and went about calculating the probability of the union of A and B. Jessie did this by counting up all of the different ways that A could occur, and then counting up all of the ways that B could occur. She then added these two numbers together and divided by 1000 to find P(A or B). a) A contingency table for the survey is shown. The values have not been put into the table, but the cells have been marked C1, C2, C3, C4. Use computer Own a computer at work Yes No Yes C1 C2 No C3 C4 In the method that Jessie uses to calculate P(A or B), the cell that is over-counted is cell: O ci O C2 O C3 O C4 b) Calculate the probability of the union A or B. Give your answer as a decimal to 2 decimal places. P(A or B) = -2 of 3 ID: MST.FET.P.CAP.02.0010A [3 marks] Craig owns a simple steakhouse restaurant, Pull Up Steaks, and he is thinking of making some changes: he wants to broaden the menu and he wants to put a bar in the restaurant. One weekend he hands out the following questionnaire to the diners: PULL UP STEAKS FEEDBACK How were we? Here at Pull Up Steaks our number one priority is your dining satisfaction and we are always trying to find new ways of achieving this. So we have a couple of questions ... Do you think we should expand our menu? YES / NO Do you think we should include a bar in our restaurant? YES / NO Craig gets 280 responses. The results of this survey are displayed in the following contingency table: Menu Expansion Restaurant Bar Yes No Yes 45 29 No 140 66 Complete these statements using the information in the above table. Give your answers to parts a) and b) to the nearest whole number. Give your answer to part c) as a decimal to 2 decimal places. a) The number of respondents that do not want the menu to be expanded is b) The number of respondents that want at least one of the changes that Craig has proposed is c) The probability that a respondent chosen at random will want at least one of the changes that Craig has proposed is 3 of 3 ID: MST.FET.P.CAP.03.0010A [3 marks] questions: A student at a university has been doing a project to investigate entertainment habits of students. They have surveyed 100 random students who were each asked three 1. Have you watched a movie in the last week? 2. Have you listened to music in the last week? 3. Have you read a book in the las However, the student keeps a very messy room and has lost some of the results. They have been able to find the following results: Of all the students surveyed, 45 had watched a movie, 38 had listened to music and 40 had read a book in the last week. Also: . o students answered yes to all three questions . 13 students answered yes to questions 1 and 2 only . 10 students answered yes to questions 1 and 3 only . 16 students answered yes only to question 1 . 22 students answered no to all three questions Find the missing information and answer the following questions regarding the group surveyed. Give your answers as whole numbers. Calculate the number of students that: a) answered yes to questions 2 and 3 only = b) answered yes to exactly one question c) had watched a movie or listened to music but had not read a book = Submit answers Bookmark Perdisco / latin /, 2010 Perdisco se | Privacy Policy. | Wednesday, August 07, 2019, 12:20 ttp://www.perdisco.com.at perdiscoperdisco Introductory Statistics Third Edition Perdisco Submit answers Bookmark Assessment Below is a set of assessable homework questions on this topic, selected by your professor. Take care! Do not submit your answers until you have read all the instructions and answered the questions carefully. When you submit your answers, you will receive immediate feedback. A Navigating this page: Submit answers: Submit your answers for immediate grading Bookmark: Save this question set so that you can come back to it later 1 of 3 ID: MS P.CAP.01.0020A [2 marks] presented here: A group of 1000 people are surveyed and asked two questions; whether they own a computer and whether they use a computer at their workplace. The results are . 567 people own a computer and use a computer at work . 143 people own a computer but do not use a computer at work . 136 people do not own a computer but use a computer at work . 154 people do not own a computer and do not use a computer at work Define the events A and B to be: . A: a randomly chosen person owns a computer . B: a randomly chosen person does not use a computer at work Jessie was studying this situation and went about calculating the probability of the union of A and B. Jessie did this by counting up all of the different ways that A could occur, and then counting up all of the ways that B could occur. She then added these two numbers together and divided by 1000 to find P(A or B). a) A contingency table for the survey is shown. The values have not been put into the table, but the cells have been marked C1, C2, C3, C4. Use computer Own a computer at work Yes No Yes C1 C2 No C3 C4 In the method that Jessie uses to calculate P(A or B), the cell that is over-counted is cell: O ci O C2 O C3 O C4 b) Calculate the probability of the union A or B. Give your answer as a decimal to 2 decimal places. P(A or B) = -2 of 3 ID: MST.FET.P.CAP.02.0010A [3 marks] Craig owns a simple steakhouse restaurant, Pull Up Steaks, and he is thinking of making some changes: he wants to broaden the menu and he wants to put a bar in the restaurant. One weekend he hands out the following questionnaire to the diners: PULL UP STEAKS FEEDBACK How were we? Here at Pull Up Steaks our number one priority is your dining satisfaction and we are always trying to find new ways of achieving this. So we have a couple of questions ... Do you think we should expand our menu? YES / NO Do you think we should include a bar in our restaurant? YES / NO Craig gets 280 responses. The results of this survey are displayed in the following contingency table: Menu Expansion Restaurant Bar Yes No Yes 45 29 No 140 66 Complete these statements using the information in the above table. Give your answers to parts a) and b) to the nearest whole number. Give your answer to part c) as a decimal to 2 decimal places. a) The number of respondents that do not want the menu to be expanded is b) The number of respondents that want at least one of the changes that Craig has proposed is c) The probability that a respondent chosen at random will want at least one of the changes that Craig has proposed is 3 of 3 ID: MST.FET.P.CAP.03.0010A [3 marks] questions: A student at a university has been doing a project to investigate entertainment habits of students. They have surveyed 100 random students who were each asked three 1. Have you watched a movie in the last week? 2. Have you listened to music in the last week? 3. Have you read a book in the las However, the student keeps a very messy room and has lost some of the results. They have been able to find the following results: Of all the students surveyed, 45 had watched a movie, 38 had listened to music and 40 had read a book in the last week. Also: . o students answered yes to all three questions . 13 students answered yes to questions 1 and 2 only . 10 students answered yes to questions 1 and 3 only . 16 students answered yes only to question 1 . 22 students answered no to all three questions Find the missing information and answer the following questions regarding the group surveyed. Give your answers as whole numbers. Calculate the number of students that: a) answered yes to questions 2 and 3 only = b) answered yes to exactly one question c) had watched a movie or listened to music but had not read a book = Submit answers Bookmark Perdisco / latin /, 2010 Perdisco se | Privacy Policy. | Wednesday, August 07, 2019, 12:20 ttp://www.perdisco.com.at perdisco