« previous next »

Author Question: A random sample of 10 university students was surveyed to determine the amount of time spent weekly ... (Read 161 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?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Using Parallax to Determine Distance Using Parallax to Determine Distance
Adenosine, Time of Day, and Hunger Adenosine, Time of Day, and Hunger
Dewey and the reformers attacked classes, such as this one, circa 1900, where students sat up straig Dewey and the reformers attacked classes, such as this one, circa 1900, where students sat up straig
Sample Problem from Raven’s Progressive Matrices Sample Problem from Raven’s Progressive Matrices
How to determine an equation in factored form from a graphed parabola How to determine an equation in factored form from a graphed parabola
How can you determine if the glucose-aversion trait in cockroach? How can you determine if the glucose-aversion trait in cockroach?
Video: Gastrin (protein digestion)

For a complete list of videos, visit our video library