Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. You are interested in investigating if being above or below the median income (medloinc) impacts ACT means (act94) for schools. Complete the necessary steps to examine univariate grouped data in order to respond to the questions below. Although deletions and/or transformations may be implied from your examination, all steps will examine original variables.a. How many subjects have missing values for medlonic and act94?b. Is there a severe split in frequencies between groups?According to the descriptive analysis, no severe split is detected. This is also reflected in the skewness number which is lower than .5.c. What are the cutoff values for outliers in each group?d. Which outlying cases should be deleted for each group?Average ACT score 1994 Stem-and-Leaf Plot formedloinc= below the median for low inc % 1993 Frequency Stem & Leaf 7.00 14 . 1223789 9.00 15 . 234478888 5.00 16 . 12788 4.00 17 . 1378 2.00 18 . 09 1.00 19 . 6 3.00 20 . 069 1.00 Extremes (>=22.5) Stem width: 1.0 Each leaf: 1 case(s)e. Analyzing histograms, normal Q-Q plots, and tests of normality, what is your conclusion regarding normality? If a transformation is necessary, which one would you use?
Tests of Normality
above or below median loinc
Kolmogorov-Smirnova
Shapiro-Wilk
Statistic
df
Sig.
average ACT score 1994
below the median for low inc % 1993
.162
32
.032
.903
.007
above the median for low inc % 1993
.166
.025
.921
.023
According to the information and the test of normality, it appears that this is a normal distribution. Therefore, for the transformation, we would select 'Square Root."
f. Do the results from Levene's Test of Equal Variances indicate homogeneity of variance? Explain.In running the test, there were no significant differences between the categories. Therefore; we can assume that this indicates homogeneity of variance. 2. Examination of the variable of scienc93 indicates a substantial to serve positively skewed distribution. Transform this variable using the most two appropriate methods. After examining the distribution for these transformed variables, which produced the best alteration?
Option-3 scheme is a scheme of measurement used in the situations investigating possible changes over the time in longitudinal data. The scheme is planned to prevent measurement o
Labour force survey : This survey carried out in the UK on the quarterly basis since the spring of year 1992. It covers 60 000 households and gives labour force and other detail
Non parametric maximum likelihood (NPML) is a likelihood approach which does not need the specification of the full parametric family for the data. Usually, the non parametric max
Linearity - Reasons for Screening Data Many of the technics of standard statistical analysis are based on the assumption that the relationship, if any, between variables is li
Last observation carried forward is a technique for replacing the observations of the patients who drop out of the clinical trial carried out over a time period. It consists of su
elements , importance, limitation, and theories
A theorem which shows that any counting process may be uniquely decomposed as the sum of a martingale and a predictable, right-continous process called the compensator, assuming ce
The total amount of protein produced by a dairy cow can be estimated from periodic testing of her milk. The following are the total annual protein production values (lb) for 28 tw
The marketing manager of Handy Foods Ltd. is concerned with the sales appeal of one of the company's present label for one of its products. Market research indicates that supermark
Data theory is anxious with how observations are transformed into data which can be analyzed. Data are thus viewed as the theory laden in the sense that the observations can be giv
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd