1.Suppose you reject the null hypothesis, use the LSD method to compare the difference in the meantime taken to find their first full-time job for Business and Computer Science graduates using 95% confidence interval. a) [-2.036, 37.750] b) [0.023, 26.370] c) [2.036, 37.750] d) [-0.023, 36.770]2 Suppose you must test the hypothesis at 5% level ofsignificance whether the mean time taken to find theirfirst full-time job for all May 2019 graduates in thesefields is the same. What is your conclusion?a) Since F=2.092 is greater than"aF=4.21we then fail reject the null hypothesis at 5% level of significance and conclude that all the meansare equal.F -4.21b) Since F=2.092 is not greater thanwe then fail reject the null hypothesis at 5% level of significance and conclude that all themeans are not equal.F =4.21c) Since F=2.092 is not greater than.we then reject the null hypothesis at 5% level of significance and conclude that all the meansare equal.F =4.21d) Since F=2.092 is not greater thana, we then fail reject the null hypothesis at 5% level of significance and conclude that all themeans are equal. A university employment office wants to compare thetime taken by graduates with three different majors tofind their first full-time job after graduation. Thefollowing table lists the time (in days) taken to find theirfirst full-time job after graduation for a random sampleof eight business majors, seven computer sciencemajors, and six engineering majors who graduated inMay 2019.SUMMARYGroupsCountSumAverageVarianceBusiness1208151386ComputerScience932133.1429253.4762Law898149.6667360.2667ANOVASource ofVariationssdfMSP-valueF critBetweenGroupsB700.23810.152404GWithin Groups6024.19Total

uppose you reject the null hypothesis, use the LSD method to compare the difference in the meantime taken to find their first full-time job for Business and Computer Science graduates using 95% confidence interval. a) [-2.036, 37.750] b) [0.023, 26.370] c) [2.036, 37.750] d) [-0.023, 36.770]

uppose you reject the null hypothesis, use the LSD method to compare the difference in the meantime taken to find their first full-time job for Business and Computer Science graduates using 95% confidence interval. a) [-2.036, 37.750] b) [0.023, 26.370] c) [2.036, 37.750] d) [-0.023, 36.770]

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

A consumer group reports that a 90% confidence interval for the mean fat content of chicken nuggets from a fast-food restaurant is (14, 18). What is the mean fat content for the sample of 30 chicken nuggets or the point estimate that help make this confidence interval? A. 32 B. 16 C. 2
Construct a 95% confidence interval for p1 - p2 for a survey that finds 30% of 240 males and 41% of 200 females are opposed to the death penalty. Group of answer choices a.(-0.200, -0.021) b.(-1.532, 1.342) c.(-1.324, 1.512) d.(-0.561, 0.651)
In a survey funded by the UW school of medicine, 750 of 1000 adult Seattle residents said they did not believe they could come down with a sexually transmitted infection (STI). Construct a 95% confidence interval estimage of the proportion of adult Seattle residents who don't believe they can contract an STI. (Use a z score of 1.96 for your computations.) (.728, .772) (.723, .777) (.718, .782) (.713, .878) (.665, .835)
1
5.A random sample of 362 married couples found that 286 had two or more personality preferences in common. In another random sample of 550 married couples, it was found that only 30 had no preferences in common. Let p1 be the population proportion of all married couples who have two or more personality preferences in common. Let p2 be the population proportion of all married couples who have no personality preferences in common. Find a 90% confidence interval for p1 – p2. (Use 3 decimal places.) lower limit upper limit
8
10. Suppose we sample 300 UNI students and find the 27 regularly wear a watch. Find a 98% confidence interval for p, the percentage of all UNI students who regularly wear a watch.
In a random sample of 1250 adult drivers, 450 said that they would cut their driving by 10% if this significantly helped the environment. Find a 95% confidence interval estimate of the proportion of adult drivers who are willing to cut their driving by 10% to help the environment. O 0.36 + 1.96 (0.36)(0.64) V1250 (0.90)(0.10) O 0.36 +1.96 1250 (0.36)(0.64) O 0.36 + 1.96, O 0.36 +1.96 (0.10)(0.90) V1230 3 4 Next Ov A 9: Co
Q.1 A farmer wants to estimate the number of rabbits on his farm. On Monday he catches(120) rabbits. He puts a tag on each rabbit. He then lets the rabbits run away. On Thursday the famer catches 70)rabbits.(15 of these rabbits have a tag on them. Estimate the population of rabbits using (i) Petersen capture-recapture method and (ii) Chapman recapture-recapture method. Give also 95% confidence intervals. Comments on your result.
2. In 2015, the average duration of long-distance telephone calls from a certain town was 3.9 minutes. A telephone company wants to perform a test to determine whether this average duration of long-distance calls has changed. Fifty calls, originating from the town, was randomly selected and the following summary minutes. Σ?=205 Σ(?−?̅)2=56.43 d) Construct the 99% confidence interval for the population mean duration of the long-distance calls from the town.
You recently sent out a survey to determine if the percentage of adults who use social media has: changed from SS%, which was the percentage of adults who used social media five years ago. Of the 2564 people who responded to survey, 1770 stated that they currently use social media. a) Use the data from this survey to construct a 98% confidence interval estimate of the proportioA of adults who use social media. Record the result below in the form of (#, #). Round your final answer to four decimal places. b) Can you conclude that the percentage of adults who use sdcial media has changed? Explain. O Yes, because the proportion of adults who used social media five years ago is inside of the confidence Interval. O Yes, because the proportion of adults who used soclal media five years ago İs not inside the confidence interval. O No, because the proportion of adults who used social media five years ago is inside the confidence interval. O No, because the proportion of adults who used social…