Problem Set #1) A random sample of 144 UT business students revealed that on average they spent 6 hours per week on Facebook. The population standard deviation is assumed to be 1.9 hours per week. The 95% confidence interval for the average time spent per week on Facebook by all UT business students is a. 5.333 to 6.452 O b. 5.439 to 6.261 OC 3.012 to 5.340 Od. 5.690 to 6.310

Problem Set #1) A random sample of 144 UT business students revealed that on average they spent 6 hours per week on Facebook. The population standard deviation is assumed to be 1.9 hours per week. The 95% confidence interval for the average time spent per week on Facebook by all UT business students is a. 5.333 to 6.452 O b. 5.439 to 6.261 OC 3.012 to 5.340 Od. 5.690 to 6.310

Name: (Problem Set #1)A random sample of 144 UT business students revealed
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: (Problem Set #1)A random sample of 144 UT business students revealed that on average they spent 6 hours per week on Facebook.The population standard deviation is assumed to be 1.9 hours per week.The 95% confidence interval for the average time spent

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

Q12 A random sample of 40 engineers shows a mean of $145580 and standard deviation $13200 as yearly income. Construct 95% confidence interval for the population mean
A random sample of 87 airline pilots had an average yearly income of $99,400 with a standard deviation of $12,000. if we want to determine a 95% confidence interval for the average yearly income Develop a 95% confidence interval for the average yearly incom of all pilots.
Suppose a marketing company computed a 96% confidence interval for the true proportion of customers who click on ads on their smartphones to be (0.59 , 0.71)
A sociologist develops a test to measure attitudes about public transportation, and 27 randomly selected subjects are given the test. Their mean score is ¯x=76.2 with standard deviation of s = 21.4. Construct the 95% confidence interval (CI) and margin of error (ME) for the mean score of all scores of all subjects.
From a random sample of 120 students, 95 rated a case of plagiarism as unethical. Using this information, you computed a confidence interval extending from 0.68 to 0.76 for the population proportion. What is the confidence coefficient of the interval?
suppose a 95% confidence interval for a correlation is 0.32 to 0.48. Give a value for the population correlation p that would be plausible and a value that would be implausible
1
2. From a random sample of 64 high school seniors, the sample mean and standarddeviation of the math scores are found to be 96 and 16 respectively. Determine a 95%confidence interval for the mean math score of all seniors in the school.
One hundred and twenty Americans were surveyed about how much time per month they spend watching television. The survey found a sample mean of 140 hours with a sample standard deviation of 44 hours. Construct a 99% confidence interval for the meantime spent watching television per month. Lower______hours Upper______hours
A sociologist develops a test to measure attitudes towards public transportation, and 37 randomly selected subjects are given the test. Their mean score is 58.5 and their standard deviation is 19.7. Construct the 95% confidence interval for the mean score of all such subjects. Write the UPPER BOUND for the confidence interval. Round to the nearest hundredth.
A company manufactures a certain over-the-counter drug. The company samples 80 pills and finds that the mean amount of drug in the pills is 325.5 mg with a standard deviation of 10.3 mg. Find the 90% confidence interval for the mean of all the pills.
From a random sample of 120 students, 95 rated a case of plagiarism as unethical. Using this information, you computed a confidence interval extending from 0.68 to 0.76 for the population proportion. What is the confidence coefficient of the interval?