JNTU
JNTU B.Tech III INTRODUCTION TO ANALYTICS (ASSOCIATE ANALYTICS I) Previous Question Paper (May - 2019 - R16)
Part A is compulsory. Part B consists of 5 Units. Answer any one full question from each unit.
Part A
Name the meeting requirements.
Answer
The meeting requirements include defining the objective, identifying stakeholders, determining the scope, setting the agenda, and establishing clear action items or outcomes.
Explain different file formats permissible in R.
Answer
R supports various file formats for data import and export, including:
- CSV/TXT: Standard delimited text files using functions like read.csv or read.table.
- Excel: Formats like .xls or .xlsx, typically handled via packages such as readxl or openxlsx.
- JSON: Structured data formats handled by the jsonlite package.
- XML: Hierarchical data parsed using the XML or xml2 packages.
- R-native: .RData or .rds files for saving R objects efficiently.
Define central limit theorem.
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What is effective work?
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List the advantages of R over Excel.
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How R is integrated with Excel?
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Expand ANOVA and give its uses.
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Differentiate forecasting and prediction.
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What is a smart utility?
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Give some business data formats.
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Part B
What is a data frame in R? Give example.
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Explain usage of loops in R with example.
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Elaborate on Quality standards Adherence.
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Elucidate on any 5 data summarizing functions in R.
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What do you know about bivariate random variables?
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With an example scenario explain the importance of communication skills for effective work.
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Describe the role of NOSQL in data analytics using an example.
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For a soap manufacturing unit, design a purchase system, and read and write to R data base.
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Elaborate on different types of regression with an example.
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What is heteroscedasticity?
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What is Auto correlation?
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Elaborate on the steps for preparation, processing and interpretation of data analytics for the business improvement of super market.
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Elaborate on production line of automotive technology and its data analysis.
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