Page 183 - Data Science class 11
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7.  What is the best format in which online data should be collected to perform the analysis?
                  a.  RTF                                            b.  DOCX
                  c.  XML                                            d.  CSV 31

               8.  The range or  set of values that  has the chance  to contain the value of a population  parameter  with  a particular
                  confidence level is considered as ______________________.
                  a.  secondary interval estimation                  b.  confidence interval estimate
                  c.  population interval estimate                   d.  sample interval estimate

               9.  The upper and lower boundaries of the interval of confidence are classified as
                  a.  error biased limits                            b.  marginal limits
                  c.  estimate limits                                d.  confidence limits

               10.  Considering the sample statistic, if the mean of the sampling distribution is equal to the population mean, then the
                  sample statistic is classified as
                  a.  unbiased estimator                             b.  biased estimator

                  c.  interval estimator                             d.  hypothesis estimator

            B.  Fill in the blanks.
               1.  ______________________ is used to store and transport data.

               2.  A ______________________ is a sensor that takes vibrational energy and converts it to electrical energy in a useful way for
                  other components in the system to correlate back to the original sound.
               3.  A ______________________ interval is a range of values that is likely to contain an unknown population parameter.
               4.  ______________________ is caused due to misrepresentation of truthfulness that occurs during the collection, handling, or
                  analysis of data in a research study.
               5.  ______________________ is a method of probability sampling in which researchers divide a population into smaller groups.

            C.  State whether these statements are true or false.
               1.  A quota is a type of trade restriction where a government restricts the number or the value of
                  a product that another country can import.                                               ____________
               2.  Star rating system is an example of open-ended questions.                               ____________

               3.  Bias means preference or prejudice for or against something.                            ____________
               4.  W3C is an acronym for World Wide Web Committee.                                         ____________
               5.  Document Prolog contains XML declaration and Document type declaration.                 ____________


                 Standard Questions (Section B)


            A.  Short answer type questions:
               1.  Distinguish between Primary data and secondary data.
               2.  Enumerate the top six data collection methods.
               3.  For what purpose are descriptive statistics used?
               4.  What are the three main measures of central tendency?
               5.  Which are the five major traditions in qualitative research?
               6.  What is a survey? What are the things to keep in mind while creating a survey?
               7.  What are the different types of questions that a survey can contain? Provide two examples for each type of question.


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