QUESTION 5 Physicians at two hospitals were given surveys that asked about their work/life balance satisfaction. Of the 1000 physicians at General Hospital (p1), 654 stated that were satisfied with their work/life balance. Of the 800 physicians at First Hospital (p2), 760 physicians stated that they were satisfied with their work/life balance. The 90% confidence interval level of the two samples was (-0.324,-0.268). According to this interval, which of the following statements is true? O There is no significant difference between the sample proportions. O pl is greater than p2. O p1 Is less than p2. if the samnle proportions are different.

QUESTION 5 Physicians at two hospitals were given surveys that asked about their work/life balance satisfaction. Of the 1000 physicians at General Hospital (p1), 654 stated that were satisfied with their work/life balance. Of the 800 physicians at First Hospital (p2), 760 physicians stated that they were satisfied with their work/life balance. The 90% confidence interval level of the two samples was (-0.324,-0.268). According to this interval, which of the following statements is true? O There is no significant difference between the sample proportions. O pl is greater than p2. O p1 Is less than p2. if the samnle proportions are different.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Several years ago, 44%of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,195parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,195 surveyed, 474 indicated that they were satisfied. Construct a 95%confidence interval to assess whether this represents evidence that parents' attitudes toward the quality of education have changed. What are the null and alternative hypotheses? Upper H 0H0: p ▼ less than< greater than> not equals≠ equals= nothing versus Upper H 1H1: p ▼ not equals≠ less than< equals= greater than> nothing (Round to two decimal places as needed.)
A study was conducted in which two types of engine, A and B, were compared. Gas mileage, in miles per gallon, was measured. Forty experiments were conducted using engine type A and 65 experiments were done with engine type B. The gasoline used and other conditions were held constant. The average gas mileage was 35 miles per gallon for engine A and 40 miles per gallon for engine B. Find a 96% confidence interval on ??−??, where ??and ?? are population mean gas mileage for engines A and B, respectively. Assume that the population standard deviations are 5 and 8 for engines A and B, respectively.
An apartment hunter is shopping for either a one-bedroom or two-bedroom apartment in varying apartment buildings. She wants to estimate the additional amount she would have to pay, on average, for a two-bedroom apartment versus a one-bedroom apartment. The table shows the prices, in dollars, for one- and two-bedroom apartments from the nine buildings she visited. A 95% confidence interval for the true mean difference between two-bedroom and one-bedroom apartments for apartment buildings like the ones in the sample was (255.93, 508.51). A friend of the apartment hunter tells her to expect to pay about $500 more per month for a two-bedroom apartment than for a one-bedroom apartment. Does the confidence interval provide evidence for the friend’s claim? A. No, the confidence interval does not contain 0, so the friend’s claim is not plausible. B. No, the confidence interval contains many more numbers below 500 than above 500, so it is unlikely that the friend’s assertion is correct. C.…
Suppose the English department of a local university has a total of 105 faculty members. Of this number, 24 (about 23%) are part-time instructors. Is it appropriate to find a confidence interval for the percentage of part-time instructors in the department? Find a 95% confidence interval or explain why you should not find a confidence interval for the percentage of part-time instructors in the English department.
In a poll, 1100 adults in Nantucket were asked about their computer gaming habits. One finding was that 43% of respondents never computer game. Find and interpret a 95% confidence interval for the proportion of all adults in Nantucket who never play computer games
At one large college, 660 out of the 1500 students surveyed said they plan to take another science class.Find the 95% confidence interval for the proportion of students that said they plan to take another science class.
Aaliyah wants to know if there is a difference between the proportions data in the following table. Construct a 95 % confidence interval for the true difference between the proportions of customers who just order water to drink at Restaurants A and B. Let Population 1 be the customers of Restaurant A and Population 2 be the customers of Restaurant B. Round the endpoints of the interval to customers who just order water to drink at two popular restaurants in town. She collected the three decimal places, if necessary. Drink orders Water Other Beverage Restaurant A 41 87 Restaurant B 87 62 Answer 囲 Tables 國 Keypad Keyboard Shortcuts Lower Endpoint = Upper Endpoint =
If the number of smokers in a sample of 40 students selected from university A is 14 and the number of smokers in a sample of 380 students selected from university B is 84. Then the 99% confidence interval for the difference between proportions of smokers in the two universities (PB-PA) is closest to O a. (-0.3110,0.0534) O b. (-0.3310,0.0729) O c. (-0.1430,-0.1150) O d. (-0.1450,-0.1130) Oe. None of these
Several years ago, 44% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,075 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,075 surveyed, 479 indicated that they were satisfied. Construct a 95% confidence interval to assess whether this represents evidence that parents' attitudes toward the quality of education have changed. What are the null and alternative hypotheses? Ho: p = 0.44 versus H,: p 0.44 (Round to two decimal places as needed.) Use technology to find the 95% confidence interval. The lower is The upper bound is (Round to two decimal places as needed.)
Several years ago, 45% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,025 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,025 surveyed, 484 indicated that they were satisfied. Construct a 99% confidence interval to assess whether this represents evidence that parents' attitudes toward the quality of education have changed.
8.2 question 5). In 2013, the Gallup poll asked 1,039 American adults if they believe there was a conspiracy in the assassination of President Kennedy and found that 634 believe there was a conspiracy ("Gallup news service," 2013). Estimate the proportion of American’s who believe in this conspiracy using a 98% confidence interval.
An insurance company collects data on seat-belt use among drivers in a country. Of 1500 drivers 30-39 years old, 33% said that they buckle up, whereas 458 of 1800 drivers 55-64 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 30-39 years and 55-64 years. ..... Construct a 95% confidence interval. The 95% confidence interval for p, - p2 is from to (Round to three decimal places as needed.)