What items can be deleted to improve reliability

Assignment Help Basic Statistics
Reference no: EM131059149

The data set you need to do the assignment.

You will need to complete the following tasks in SPSS. You will also need to print them out and submit them as well as a hard copy:

Activity 01:

Enter all data from the spreadsheet "Data for Assignment 2"into SPSS. You will need to set up the variable view with the following 11 variables and then enter the data in data view:

a) Student_ID,
b) Year_Enrolled,
c) HI001_Final_Exam,
d) HI001_Assignment_01,
e) HI001_Assignment_02,
f) HI002_Final_Exam,
g) HI002_Assignment_01,
h) HI002_Assignment_02,
i) HI003_Final_Exam,
j) HI003_Assignment_01,
k) HI003_Assignment_02.

Activity 02:
a) Do a frequency table, histogram, normal Q - Q and the de-trended normal Q-Q for each one of the 11 variables.

b) Do descriptive statistics (mean, standard deviation, minimum, maximum) for each one of the 11 variables.

Activity 03:
a) Do at least 10 different correlations between the any pairs of variables: For example:
o HI001_Final_Exam and HI002_Final_Exam
o HI001_Assignment_01 and HI001_Assignment_02

b) For each correlation discuss the results:
o Are they are positive/negatively correlated?
o Are they weak or strong correlations?
o What is the significance value?
o What does the significance value reveal about the data we have used?

Activity 04:
a) Do a Cronbach's alpha reliability test on the following 9 variables: HI001_Final_Exam, HI001_Assignment_01, HI001_Assignment_02, HI002_Final_Exam, HI002_Assignment_01, HI002_Assignment_02, HI003_Final_Exam, HI003_Assignment_01, HI003_Assignment_02.

b) Discuss the results.
a. What item/s can be deleted to improve reliability?
b. What items should never be deleted to maintain reliability of data?
c. How many items need to be deleted to achieve maximum reliability?

Activity 05:
a) Copy -paste the data view and the variable view from your SPSS file to a Word document.
b) Copy-paste ALL the output from all the activities requested in Activity 01 to 04 in SPSS and put the answers in the same Word document.
c) Answer all discussion questions requested in Activity 01 to 04 and put the answers in the same Word document.
d) Submit a hard copy of Assignment 02 Word document to Holmes.
e) Submit a soft copy of the SPSS files used in SPSS and the Assignment 02 Word document online under Assignment 02 final submission.

Please check both files for details and if you don't have idea on how to do it then please let me know in beginning itself so that I can get it done somewhere else.

Attachment:- DATA for Assignment.xlsx

Verified Expert

This task provides a clear working examples for descriptive statistics, correlation coefficient and Cronbach's Alpha. The correlation between two variables should show a significant relationship and this is obtained when the correlation value falls between 0.7 and 1. The Cronbach Alpha is used to determine the internal consistency of the data set and alpha value of 0.7 or higher is considered as good internal consistency.

Reference no: EM131059149

Questions Cloud

Components before and after the project addition : The All-Mine Corporation is deciding whether to invest in a new project. The project would have to be financed by equity, the cost is $2000 and will return $2500 or 25% in one year. Each economic outcome is equally likely and the promised debt repaym..
What is its speed at the top : A marble slides without friction in a vertical plane around the inside of a smooth, 30cm-diameter horizontal pipe. The marble's speed at the bottom is 3.0m/sthis is fast enough so that the marble makes a complete loop, never losing contact with th..
How does hammerpress employ the concept of dynamic pricing : How does Hammerpress employ the concept of dynamic pricing? Discuss Hammerpress in relation to the three major pricing strategies. Which of these three strategies is the company's core strategy?
What is view of power of socialization with regard to gender : write a brief response paper (750 words - double spaced) of the attached reading. Some questions you might try to answer are: Is this author's view different from that of your textbook writers? Contrast this story with that of David ("Brenda") sha..
What items can be deleted to improve reliability : HI6007 SPSS - Do a frequency table, histogram, normal Q - Q and the de-trended normal Q-Q for each one of the 11 variables - different correlations between the any pairs of variables
Find the absolute change in the percent of people living : Find the Absolute Change in the percent of people living in poverty in Indiana from 2001 to 2011. Find the Relative Change in the Percent of those living in Poverty for the state of Indiana from 2001 to 2011
Explain why the cost differs for each product : Explain why the cost differs for each product. Explain whether or not it is possible to drop the price of the Alpha to compete. Based on your analysis, explain whether LEHIGH can focus only on two products.
Determining the concave spherical mirror : A magician wishes to create the illusion of a 2.49 m tall elephant. He plans to do this by forming a virtual image of a 42.0 cm tall model elephant with the help of a concave spherical mirror.
Question regarding the constant downward velocity : a) What is the net force acting on an object with a mass of 10 kilograms, falling at a constant downward velocity of 15 meters per second (15 m/s)?Please show work.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd