« previous next »

Author Question: A random sample of 10 university students was surveyed to determine the amount of time spent weekly ... (Read 91 times)

jayhills49

  • Hero Member
  • *****
  • Posts: 559
on: Jun 24, 2018
A random sample of 10 university students was surveyed to determine the amount of time spent weekly at the library. The times are: 13, 14, 5, 6, 8, 10, 7, 12, 15, and 3 . If the times are normally distributed with a standard deviation of 5.2 hours, estimate with 90 confidence the mean weekly time at the library by all university students.

Question 2

Because of multicollinearity, the t-tests of the individual coefficients may indicate that some independent variables are not linearly related to the dependent variable, when in fact they are.
  Indicate whether the statement is true or false


Zebsrer

  • Sr. Member
  • ****
  • Posts: 284
Reply #1 on: Jun 24, 2018
Answer to Question 1

LCL = 6.59 and UCL = 12.01 hours.

Answer to Question 2

T


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Water amount needed to grow crops Water amount needed to grow crops
Radiation Side Effects, Healing Time, and Intervention Radiation Side Effects, Healing Time, and Intervention
Calculation of body mass index. To determine your BMI, find the value for your height on the left ... Calculation of body mass index. To determine your BMI, find the value for your height on the left ...
A demonstration engine showing the amount of water that can be circulated through the cooling ... A demonstration engine showing the amount of water that can be circulated through the cooling ...
Sample of résumé content. Sample of résumé content.
How to calculate the DRT to determine which is more effective against the pathogen How to calculate the DRT to determine which is more effective against the pathogen
Video: Simple Diffusion - gases and nonpolar compounds transport

For a complete list of videos, visit our video library