the average length of time for students to register for fall classes at a certain college has been 50 minutes
The time needed for college students to complete a certain paper and pencil maze follows a Normal distribution, with a mean of 70 seconds and a standard deviation of 15 seconds. You wish to see if the mean time μ is changed by meditation, so you have a group of 9 college students meditate for 30 minutes and then complete the maze. Question 29 of 40> The time needed for college students to complete a certain paper and pencil maze...
Question 11 A group of 50 college students from a certain liberal arts college were Type numbers in the boxes. randomly sampled and asked about the number of alcoholic drinks they have 10 points in a typical week. The purpose of this study was to compare the drinking habits of the students at the college to the drinking habits of college students in general. In particular, the dean of students, who initiated this study, would like to check whether the...
(1 point) The time needed for college students to complete a certain paper-and-pencil maze follows a normal distribution with a mean of 30 seconds and a standard deviation of 3.7 seconds. You wish to see if the mean time u is changed by vigorous exercise, so you have a group of 25 college students exercise vigorously for 30 minutes and then complete the maze. It takes them an average of x = 28 seconds to complete the maze. Use this...
The time needed for college students to complete a certain maze follows a normal distribution with a mean of 45 seconds.To see if the mean time(in seconds) is changed by vigorous exercise,we have a group of nine college students exercise vigorously for 30 minutes and then complete the maze. The sample mean and standard deviation of the collected data is 49.2 seconds and 3.5 seconds respectively. Use thesse data to perform an appropriate test of hypothesis at %1,%5 and %10...
The time needed for college students to complete a certain maze follows a normal distribution with a mean of 45 seconds.To see if the mean time(in seconds) is changed by vigorous exercise,we have a group of nine college students exercise vigorously for 30 minutes and then complete the maze. The sample mean and standard deviation of the collected data is 49.2 seconds and 3.5 seconds respectively. Use thesse data to perform an appropriate test of hypothesis at %1,%5 and %10...
The time needed for college students to complete a certain maze follows a normal distribution with a mean of 45 seconds.To see if the mean time(in seconds) is changed by vigorous exercise,we have a group of nine college students exercise vigorously for 30 minutes and then complete the maze. The sample mean and standard deviation of the collected data is 49.2 seconds and 3.5 seconds respectively. Use thesse data to perform an appropriate test of hypothesis at %1,%5 and %10...
The time needed for college students to complete a certain paper-and-pencil maze follows a normal distribution with a mean of 30 seconds and a standard deviation of 3.5 seconds. You wish to see if the mean time μ is changed by vigorous exercise, so you have a group of 45 college students exercise vigorously for 30 minutes and then complete the maze. It takes them an average of x¯=29.1 seconds to complete the maze. Use this information to test the...
The time needed for college students to complete a certain paper and pencil maze follows a Normal distribution with a population mean of 80 seconds and a population standard deviation of 16 seconds. You wish to see if the mean time µ is changed by meditation, so you have a random sample of 12 college students meditate for 30 minutes and then complete the maze. It takes them an average of x = 73.3 seconds to complete the maze, with...
32. Use the following information for questions 31-34: The average GPA for all college students in the United States as of 2006 was 3.11. We want to test to see if the GPA of students at Texas A&M is higher than the national average. Suppose we survey 47 randomly selected students at Texas A&M and the average GPA is 3.27, with a standard deviation of 0.54. Assuming all conditions are met, conduct a hypothesis test at the 0.01 significance level. What is the...
Historically, the average height of females in the freshman class of a certain college has been 162.5 centimeters. Is there reason to believe that there has been a change in the average height if a random sample of 50 females in the present freshman class has an average height of 165.2 centimeters, with a standard deviation of 6.9 centimeters? Assume the level of significance equals 0.05 and that height is normally distributed. What is/are the critical value(s) for this hypothesis...