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

In an investigation of environmental causes of disease data

In an investigation of environmental causes of disease, data were collected on the annual mortality rate ( deaths per 100,0000) for males in 61 large towns in England and Wales. In addition, the water hardness was record ...

1 what are the advantages and disadvantages of using

1. What are the advantages and disadvantages of using narrative records in observational research? 2. Distinguish between a structured and unstructured observation method. 3. Distinguish between checklists and observatio ...

Jolie takes 45 minutes to do her statistics homework if the

Jolie takes 45 minutes to do her statistics homework. If the mean is 38 minutes and the standard deviation is 3, calculate Jolie's z score. Once calculated, interpret your findings in terms of Jolie's performance.

What tensions emerged in the southwest that threatened to

What tensions emerged in the Southwest that threatened to lead the United States into a war with Mexico? On what grounds did President James K. Polk ask Congress to declare war on Mexico?

Using size as the independent variable and cost as the

Using "size" as the independent variable and "cost" as the dependent variable, draw a scatter plot. b. Does it appear from inspection that there is a relationship between the variables? Why or why not? c. Calculate the l ...

Regarding probability which of the following isnbspcorrecta

Regarding probability, which of the following is  correct ? a. When events  A  and  B  are mutually exclusive, then  P ( A  and  B ) =  P ( A ) +  P ( B ). b. The union of events  A  and  B  consists of all outcomes in t ...

In minitab open the data set pulsemtw you may assume that

In Minitab, open the data set PULSE.mtw. You may assume that these 92 students are a random sample of all undergraduates. (a) Obtain a 95% confidence interval for µ F  - µ M , the extent to which average pulse rates of f ...

Discuss how a human rights approach may aid or obstruct the

Discuss how a Human Rights Approach may aid or obstruct the resolution of these three themes: 1. Poverty 2. The Syrian Refugee crisis 3. The death penalty For each theme, please make sure you discuss the human rights iss ...

Suppose that you wanted to study children who have down

Suppose that you wanted to study children who have Down syndrome. How might you use cluster sampling to obtain a probability sample of children with Down syndrome in your state?

Question discuss the specific innovations of jackson

Question: Discuss the specific innovations of Jackson Pollock, as well as his cultural influences and artists he influenced. Use at least two examples of specific artworks. This question relates to Chapter 28 and 29 in A ...

  • 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