Question 1- An insurance company collects data on seat-belt use among drivers in a country. Of...
Question 1-
An insurance company collects data on seat-belt use among drivers in a country. Of 1800 drivers 20-29 years old, 35% said that they buckle up, whereas 479 of 1500 drivers 45-64 years old said that they did. Find a 90% confidence interval for the difference between the proportions of seat-belt users for drivers in the age groups 20-29 years and 45-64 years.
The 90% confidence interval for p1-p2 is?
Question 2-
The coefficient of determination of a set of data points is 0.598 and the slope of the regression line is 3.22 Determine the linear correlation coefficient of the data.
What is the linear correlation coefficient? r=?
Homework Answers
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Question 1-
An insurance company collects data on seat-belt use among
drivers in a country. Of...
An insurance company collects data on seat-belt use among drivers in a country. Of 1800 drivers...
An insurance company collects data on seat-belt use among drivers in a country. Of 1800 drivers 30-39 years old, 26% said that they buckle up, whereas 457 of 1600 drivers 55-64 years old said that they did. Find a 98% confidence interval for the difference between the proportions of seat-belt users for drivers in the age groups 30-39 years and 55-64 years. Construct a 98% confidence interval.The 98% confidence interval for p 1 minus p 2p1−p2 is from nothing to...
An insurance company collects data on seat-belt use among drivers in a country. Of 1700 drivers...
An insurance company collects data on seat-belt use among drivers in a country. Of 1700 drivers 30-39 years old, 30% said that they buckle up, whereas 488 of 2000 drivers 55-64 years old said that they did. Find a 99% confidence interval for the difference between the proportions of seat-belt users for drivers in the age groups 30-39 years and 55-64 years. Construct a 99% confidence interval The 99% confidence interval for p1-p2 is from Round to three decimal places...
ch. 12 An insurance company collects data on seat-belt use among drivers in a country. Of...
ch. 12
An insurance company collects data on seat-belt use among drivers in a country. Of 1300 drivers 25-34 years old, 22% said that they buckle up, whereas 386 of 1000 drivers 50-59 years old said that they did. Find a 90% confidence interval for the difference between the proportions of seat-belt users for drivers in the age groups 25-34 years and 50-59 years Construct a 90% confidence interval The 90% confidence interval for p1-p2 is (Round to three decimal...
Q7 An insurance company collects data on seat-belt use among drivers in a country. Of 1600...
Q7
An insurance company collects data on seat-belt use among drivers in a country. Of 1600 drivers 25-34 years old, 26% said that they buckle up, whereas 484 of 1900 drivers 50-59 years old said that they did. Find a 98% confidence interval for the difference between the proportions of seat-belt users for drivers in the age groups 25-34 years and 50-59 years Construct a 98% confidence interval to D The 98% confidence interval for p1-p2 is from (Round to...
This Question: 1 pt 9 of 11 (9 complete) This Test: 11 pts possible tic: Question...
This Question: 1 pt 9 of 11 (9 complete) This Test: 11 pts possible tic: Question Help An insurance company colects data on mot-belt use among drivers in a country of 1700 drivers 20-29 years old, 19% said that they buckle up, whereas 408 of 1800 drivers 45-64 years old said that they did. Find a 95% confidence interval for the difference between the proportions of seat-belt users for drivers in the age groups 20-29 years and 45-64 years Constructa...
Hi! the second example shows the entire qestion to the first problem, please answer the first...
Hi! the second example shows the entire qestion to the first
problem, please answer the first question with those steps. :-)
An insurance company collects data on seat-belt use among drivers in a country. Of 1 100 drivers 20-29 years old, 19% said that they buckle up, whereas 341 of 1300 drivers 45-64 years old said that they did. At the 19 sign cance e el do he data suggest a there sa difference in sea e use et een...
This Test: 9 pts data on seal bet use anorgonen nacortryOf,500 oners 20 29 years oid,...
This Test: 9 pts data on seal bet use anorgonen nacortryOf,500 oners 20 29 years oid, ta% sa d Pal rwy nterval for the dfference between the proportions of seat did Find a98% beit users for drivers in the age groups 20-20 years and 45 64 years The 90% condidence interval for p,-P is rom o (Round to three decimal places as needed) hone (1)
A random sample of eight auto drivers insured with a company and having similar auto insurance...
A random sample of eight auto drivers insured with a company and having similar auto insurance policies was selected. The following table lists their driving experience (in years) and the monthly auto insurance premium (in dollars). Driving Experience(years) 5 2 12 9 15 6 25 16 Monthly Premium(dollars) 64 87 50 71 44 56 42 60 Answer the following questions. (h) What is the value of the correlation coefficient, r? Is the linear relationship between the price and the age...
Question 2 A research firm collected data on a sample of n= 30 drivers to investigate...
Question 2 A research firm collected data on a sample of n= 30 drivers to investigate the relationship between the age of a driver and the distance the driver can see. The data is given below: Age Distance Age Distance 18 510 55 420 20 590 63 350 22 560 65 420 23 510 66 300 23 460 67 410 25 490 68 300 27 560 70 390 28 510 71 320 29 460 72 370 32 410 73 280...
Question 1 1 pts question 1- based on the sample data summarized by the following information:...
Question 1 1 pts question 1- based on the sample data summarized by the following information: n = 5, L r = 25, x2 = 165 Sy=24, y = 134, ry=144 1<x<9 1. Compute the linear correlation coefficient r- 0.875 0.635 0.576 O 0.738 0.925 Question 2 1 pts 2. The least squares regression line equation for this data should be 0.6.0 + 1.8 y = -0.63 +1.8 O j = 0.62 - 1.8 y = -0.6 - 1.8 Question...
An insurance company collects data on seat-belt use among drivers in a country. Of 1700 drivers 30-39 years old, 30% said that they buckle up, whereas 488 of 2000 drivers 55-64 years old said that they did. Find a 99% confidence interval for the difference between the proportions of seat-belt users for drivers in the age groups 30-39 years and 55-64 years. Construct a 99% confidence interval The 99% confidence interval for p1-p2 is from Round to three decimal places...
ch. 12
An insurance company collects data on seat-belt use among drivers in a country. Of 1300 drivers 25-34 years old, 22% said that they buckle up, whereas 386 of 1000 drivers 50-59 years old said that they did. Find a 90% confidence interval for the difference between the proportions of seat-belt users for drivers in the age groups 25-34 years and 50-59 years Construct a 90% confidence interval The 90% confidence interval for p1-p2 is (Round to three decimal...
Q7
An insurance company collects data on seat-belt use among drivers in a country. Of 1600 drivers 25-34 years old, 26% said that they buckle up, whereas 484 of 1900 drivers 50-59 years old said that they did. Find a 98% confidence interval for the difference between the proportions of seat-belt users for drivers in the age groups 25-34 years and 50-59 years Construct a 98% confidence interval to D The 98% confidence interval for p1-p2 is from (Round to...
This Question: 1 pt 9 of 11 (9 complete) This Test: 11 pts possible tic: Question Help An insurance company colects data on mot-belt use among drivers in a country of 1700 drivers 20-29 years old, 19% said that they buckle up, whereas 408 of 1800 drivers 45-64 years old said that they did. Find a 95% confidence interval for the difference between the proportions of seat-belt users for drivers in the age groups 20-29 years and 45-64 years Constructa...
Hi! the second example shows the entire qestion to the first
problem, please answer the first question with those steps. :-)
An insurance company collects data on seat-belt use among drivers in a country. Of 1 100 drivers 20-29 years old, 19% said that they buckle up, whereas 341 of 1300 drivers 45-64 years old said that they did. At the 19 sign cance e el do he data suggest a there sa difference in sea e use et een...
This Test: 9 pts data on seal bet use anorgonen nacortryOf,500 oners 20 29 years oid, ta% sa d Pal rwy nterval for the dfference between the proportions of seat did Find a98% beit users for drivers in the age groups 20-20 years and 45 64 years The 90% condidence interval for p,-P is rom o (Round to three decimal places as needed) hone (1)
Question 1 1 pts question 1- based on the sample data summarized by the following information: n = 5, L r = 25, x2 = 165 Sy=24, y = 134, ry=144 1<x<9 1. Compute the linear correlation coefficient r- 0.875 0.635 0.576 O 0.738 0.925 Question 2 1 pts 2. The least squares regression line equation for this data should be 0.6.0 + 1.8 y = -0.63 +1.8 O j = 0.62 - 1.8 y = -0.6 - 1.8 Question...
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