AD3491 Fundamentals of data science analysis

                                                           


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Important questions 
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AD3491 Fundamentals of data science analysis

Unit 1
1. Benefits and uses and process. of data science 
2. cleansing, integrating, and transforming data
3.Data analysis, building applications
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UNIT-2
1. Correlation,scatter plots,regression,least squares regression line
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2.Normal Distributions and Standard (z) Scores
UNIT-3
1. random sampling, Sampling distribution,standard error of the mean
2. z-test procedure,decision rule.
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UNIT-4
1.  two-factor ANOVA,Introduction to chi-square tests,experiments**
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2. sampling distribution of t – t-test procedure,three F test**
UNIT-5
1. weighted resampling. Regression using StatsModels

2.serial correlation, autocorrelation,TOTA

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**Very important questions are bolded and may be asked based on this topic

PART-C

1.Compulsory Questions {a case study where the student will have to read and analyse the subject }
mostly asked from unit 2, 5(OR) a situation given and you have to answer on your own

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SYllabuS

UNIT I INTRODUCTION TO DATA SCIENCE
Need for data science – benefits and uses – facets of data – data science process – setting the 
research goal – retrieving data – cleansing, integrating, and transforming data – exploratory data 
analysis – build the models – presenting and building applications.
UNIT II DESCRIPTIVE ANALYTICS
Frequency distributions – Outliers –interpreting distributions – graphs – averages - describing 
variability – interquartile range – variability for qualitative and ranked data - Normal distributions – z 
scores –correlation – scatter plots – regression – regression line – least squares regression line –
standard error of estimate – interpretation of r2 – multiple regression equations – regression toward 
the mean.
UNIT III INFERENTIAL STATISTICS
Populations – samples – random sampling – Sampling distribution- standard error of the mean -
Hypothesis testing – z-test – z-test procedure –decision rule – calculations – decisions –
interpretations - one-tailed and two-tailed tests – Estimation – point estimate – confidence interval –
level of confidence – effect of sample size.
UNIT IV ANALYSIS OF VARIANCE
t-test for one sample – sampling distribution of t – t-test procedure – t-test for two independent 
samples – p-value – statistical significance – t-test for two related samples. F-test – ANOVA – Two-
factor experiments – three f-tests – two-factor ANOVA –Introduction to chi-square tests.
UNIT V PREDICTIVE ANALYTICS
Linear least squares – implementation – goodness of fit – testing a linear model – weighted 
resampling. Regression using StatsModels – multiple regression – nonlinear relationships – logistic 
regression – estimating parameters – Time series analysis – moving averages – missing values –
serial correlation – autocorrelation. Introduction to survival analysis.
TOTA

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