ReviewStudent EvalsFaculty Evals-Admin Evals-Student PortalLibraryTutorials-Question 4Not yet answeredMarked out of 2.00P Flag questionAn investigator predicts that dog owners in the country spend more time walking their dogsthan do dog owners in the city. The investigator gets a sample of 21 country owners and 23 cityowners. The mean number of hours per week that city owners spend walking their dogs is 10.0.The standard deviation of hours spent walking the dog by city owners is 3.0. The mean numberof hours country owners spent walking their dogs per week was 15.0. The standard deviation ofthe number of hours spent walking the dog by owners in the country was 4.0. With confidencelevel of 95% (level of significance of 5%), do dog owners in the country spend more time walkingtheir dogs than dog owners in the city?What is the degrees of;freedom of the problem that we will use to look onto the t-table?Select one or more:e left 1:08:5422814APR8.tvWT.MacBook Air

Name: ReviewStudent EvalsFaculty Evals-Admin Evals-Student PortalLibraryTut
Uploaded: 2024-03-20T07:07:26.000Z
Channel: Bartleby
Description: ReviewStudent EvalsFaculty Evals-Admin Evals-Student PortalLibraryTutorials-Question 4Not yet answeredMarked out of 2.00P Flag questionAn investigator predicts that dog owners in the country spend more time walking their dogsthan do dog owners in th

The degrees of freedom is, df=n1+n2-2=21+23-2=42

Answered: What is the degrees of freedom of the…

Math

Statistics

What is the degrees of freedom of the problem that we will use to look onto the t-table?

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

2. If the heights of a male youngsters are normally distributed with a mean of 60 inches and a standard deviation of 10, what percentage of the boys' heights (in inches) would we expect to be a. Between 45 and 75 b. Less than 50 C. 75 or more d. If there are 2,500 male youngsters, how many have height between 65 to 85?
Please answer it clearly
My topic is Hair Length, I need the solutions.
Baby walkers are seats hanging from frames that allow babies to sit upright withtheir legs dangling and feet touching the floor. Walkers have wheels on their legsthat allow the infant to propel the walker around the house long before he or she canwalk or even crawl. Typically, babies use walkers between the ages of 4 months and11 months.Because more walkers have tray table in front that block babies’ view of their feet,child psychologists have begun to questions whether walkers affect infants’cognitive development. One study compared mental skills of a random a=sample fothose who used walkers with a random sample of those who never used walkers.Mental skill scores averaged 113 for 54 babies who used walkers (standard deviationof 12) and 123 for 55 babies who did not use walkers (standard deviation of 15). (A) Is there evidence that the mean mental skill score of babis who use walkers is different from the mean mental skill score of babies who do not use walkers? Explain your Answer.
In the least-squares line = 5 – 9x, what is the value of the slope?When x changes by 1 unit, by how much does y change? When x increases by 1 unit, y decreases by 9 units. When x decreases by 1 unit, y decreases by 9 units. When x increases by 1 unit, y decreases by −9 units. When x increases by 1 unit, y increases by 9 units.
Can someone please help me with this? its all one question or task
What should we do when we have (imperfect) multicollinearity? Drop some of the independent variables. Add more independent variables in order to reduce multicollinearity. Consider testing whether the highly collinear variables are jointly significant. O Ignore it no matter what.
Please solve the last part. g
I need help