Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Multiple choices based on the Chi square test.

1. What is the critical value at the 0.05 level of significance for a goodness-of-fit test if there are six categories?
a. 3.841
b.5.991
c.7.815
d.11.070
e. None of the above

 

2. Two chi-square distributions were plotted on the same chart. One distribution was for 3 degrees of freedom and the other was for 12 degrees of freedom. Which distribution would be likely to approach a normal distribution?
a. 3 degrees
b.12 degrees
c.15 degrees
d. All would
e. None of the above

 

3. A distributor of personal computers has five locations in the city. The sales in units for the first quarter of the year were as follows:

 

Location 

Observed Scales(units)

North

   70

Pleasant way

   75

Southwyck

   70

I-90

   50

Venice Avenue

   35

 

 300

What is the critical value at the 0.01 level of risk?
a.7.779
b.15.033
c.13.277
d.5.412
e. None of the above

 

4. To analyze data cross-classified in a contingency table, how are the degrees of freedom found?
A. N-1
b. Rows - Columns
c.(Rows) x (Columns)
d.(Rows - 1) x (Columns - 1)
e. None of the above

 

5.The following table shows the adjustment to civilian life and place of residence.


Residence After

Adjustment to Civilian Life

Release From Prison Outstanding Good

Fair Unsatisfactory

Hometown

27

35

33

25

Not Hometown

13

15

27

25

Total

40

50

60

50

 What is the critical value for this contingency table at the 0.01 level of significance?
a.9.488
b.2.070
c.11.345
d.13.277
e. None of the above

 

6. The educational level and the social activity of a sample of executives follow.

Social Activity

 

 

 

Education

 Above Avg

   Avg  

 Below Avg

College

   30

   20

    10

High School

   20

   40

   90

Grade School

   10

   50

  130

What does the expected frequency for the "above average" social activity and "high school" education equal?
a.9.50
b.60.00
c.22.50
d.28.50
e. None of the above

 

7. Which of the following are true statements about the chi-square distribution?
a. Distribution is negatively skewed
b. Chi-square is based on two sets of degrees of freedom, one for the numerator and one for the denominator
c. Its shape is based on the degrees of freedom
d. All of the above are true
e. None of the above are true

8. Three new colours have been proposed for the Jeep Grand Cherokee vehicle. They are silvered-blue, almond, and willow green. The null hypothesis would be
a. willow green preferred over the other colors.
b. no preference among the colors.
c. any one color preferred over the other colors.
d. impossible to determine.
e. none of the above.

 

9. For a chi-square test involving a contingency table, suppose the null hypothesis is rejected. We conclude that the two variables are
a. linear.
b. curvilinear.
c. not related.
d. related.
e. none of the above.

 

10. The test whether two variables or characteristics are related results in
a. a contingency table.
b. a chi-square table.
c. an ANOVA table.
d. a scatter diagram.
e. none of the above.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921935

Have any Question? 


Related Questions in Statistics and Probability

1 discuss the advantages and disadvantages of using a

1. Discuss the advantages and disadvantages of using a successive independent samples survey design versus a longitudinal design to measure changes in people's attitudes over time. 2. Suppose that you wanted to obtain a ...

A business student is interested in estimating the 99

A business student is interested in estimating the 99% confidence interval for the proportion of students who bring laptops to campus. He wishes a precise estimate and is willing to draw a large sample that will keep the ...

1 what is the difference between simple also known as

1. What is the difference between simple (also known as univariate and bivariate) regression and multivariate regression? A) Simple regression includes one independent variable, and multivariate regression includes more ...

Your company is seeking to forecast demand for the next

Your company is seeking to forecast demand for the next month based on the information given in the following table: Month May June July Aug Oct Sept Oct Nov Dec Demand 40 44 43 45 42 50 48 54 a. (6) Develop a forecast f ...

The potential revenues of all projects are in fact

The potential revenues of all projects are in fact uncertain. The company determines that the revenue for project 1 is following a uniform distribution ranging from $1,200,000 to $2,000,000. The revenue for project 2 is ...

250 -300 wordsexplain the history behind the black soldier

250 -300 words Explain the history behind the Black Soldier of the Civil War In this forum look beyond the book for information on specific units, soldiers and even the reasons for why Lincoln allowed the African America ...

A social psychologist is interested in whether the type of

A social psychologist is interested in whether the type of music a college student is listening to will have any effect on the number of beers the student drinks. Fifteen college students were randomly assigned to one of ...

Your statistics teacher knowing the power of sampling

Your statistics teacher, knowing the power of sampling, decides to use only 3 of your 5 quiz grades in assigning your grade for the course, chosen at random. Your quiz average using all 5 quizzes is 81.6, with a standard ...

Do men and women select different breakfasts the breakfasts

Do men and women select different breakfasts? The breakfasts ordered by randomly selected men and women at a popular breakfast place is shown inTable 11.55. Conduct a test for homogeneity at a 5% level of significance. F ...

Starting in the 10th century movements to reform the church

Starting in the 10th century, movements to reform the church began. Why was the church in need of reform, and what were the consequences of the Gregorian Reforms? How did these reforms change society? 1 and a half page e ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro