An insurance company would like to test the hypothesis that a difference exists in the proportion...

An insurance company would like to test the hypothesis that a difference exists in the proportion of students in 12th grade who text while driving when compared to the proportion of 11th

grade drivers who text. A random sample of 160 12th grade students found that 84 texted while driving. A random sample of 17511th grade students found that 70 texted while driving. Assume Population 1 is defined as 12th grade drivers and Population 2 is defined as 11th grade drivers. What is the p-value for this hypothesis test?

0.0220

0.1610

0.0418

0.1850

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

An insurance company would like to test the hypothesis that a difference exists in the proportion...

An insurance company would like to test the hypothesis that a difference exists in the proportion of students in 12th grade who text while driving when compared to the proportion of 11th-grade drivers who text. A random sample of 160 12th grade students found that 84 texted while driving. A random sample of 175 11th grade students found that 84 texted while driving. A random sample of 175 12th grade drivers and Population 2 is defined as 11th-grade drivers. What...

A car dealership would like to test the hypothesis that a difference exists in the city...

A car dealership would like to test the hypothesis that a difference exists in the city gas mileage (miles per gallon when driven in the city) of three cars, Honda Insight, Hyundai Ioniq and Toyota Camry. The following data represent the miles per gallon for a random sample of Honda Insight, Hyundai Ioniq and Toyota Camry cars. Honda Insight Hyundai Ioniq Toyota Camry 40 35 35 36 37 34 37 38 31 38 34 36 38 34 33 36 36...

An online travel agency would like to test the hypothesis that the proportion of a particular...

An online travel agency would like to test the hypothesis that the proportion of a particular airline's flights that arrive on-time is less than 0.90. A random sample of 140 such flights found that 119 arrived on-time. The agency would like to set α=0.05. This is A) Upper tail test, B) lower tail or C) two-tail test

AT&T would like to test the hypothesis that the proportion of 18- to 34-year-old Americans that...

AT&T would like to test the hypothesis that the proportion of 18- to 34-year-old Americans that own a cell phone is less than the proportion of 35- to 49-year-old Americans. A random sample of 200 18- to 34-year-old Americans found that 126 owned a smartphone. A random sample of 175 35- to 49-year-old Americans found that 119 owned a smartphone. If Population 1 is defined as 18- to 34-year-old Americans and Population 2 is defined as 35- to 49-year-old Americans,...

A car insurance company would like to determine the proportion of accident claims covered by the...

A car insurance company would like to determine the proportion of accident claims covered by the company. According to a preliminary estimate 40% of the claims are covered. How large a sample should be taken to estimate the proportion of accident claims covered by the company if we want to be 90% confident that the sample percentage is within  2% of the actual percentage of the accidents covered by the insurance company?

A car insurance company would like to determine the proportion of accident claims covered by the...

A car insurance company would like to determine the proportion of accident claims covered by the company. According to a preliminary estimate, 60 percent of the claims are covered. How large a sample should be taken to estimate the proportion of accident claims covered by the company if we want to be 98 percent confident that the sample percentage is within ±3 percent of the actual percentage of the accidents covered by the insurance company?

5. A car insurance company would like to determine the proportion of accident claims covered by...

5. A car insurance company would like to determine the proportion of accident claims covered by the company. According to a preliminary estimate 65% of the claims are covered. How large a sample should be taken to estimate the proportion of accident claims covered by the company if we want to be 95% confident that the sample percentage is within 2% of the actual percentage of the accidents covered by the insurance company?

In a hypothesis test involving the population proportion, which of the following would be an acceptable...

In a hypothesis test involving the population proportion, which of the following would be an acceptable formulation? Ho: p=0.25 Ha: vs p not equal0.25 none of these Ho: p = 0.25 Vs Ha: p< 0.25 Ho: p = 0.25 vs Ha: p>0.25 please what is the answer?

The Dean of the Business School at State University would like to test the hypothesis that...

The Dean of the Business School at State University would like to test the hypothesis that no difference exists between the average final exam grades for the Introduction to Marketing course and the Introduction to Finance course. A random sample of eight students who took both courses was selected and their final exam grades for each course are attached below below. Assume Population 1 is defined as the Marketing exam scores and Population 2 is defined as the Finance exam...

The Dean of the Business School at State University would like to test the hypothesis that...

The Dean of the Business School at State University would like to test the hypothesis that no difference exists between the average final exam grades for the Introduction to Marketing course and the Introduction to Finance course. A random sample of eight students who took both courses was selected and their final exam grades for each course are shown below. Assume Population 1 is defined as the Marketing exam scores and Population 2 is defined as the Finance exam scores....

Subjects