Sherrie is interested in average monthly sales for smartphones in the United States. She found information on the Internet that gives annual sales, so she took the annual sales and divided it by twelve to get a monthly average. This is an example of _____.
a. data mining
b. data division
c. data conversion
d. data validation
Question 2All of the following statements are true of the required sample size, except that
a. it varies inversely with the precision desired
b. it varies directly with the estimate of the population standard deviation
c. if varies inversely with the size of the population
d. it varies directly with the desired confidence level
Question 3When ranking data are transformed, the frequency of the ranking score should be divided by the score.
Indicate whether the statement is true or false
Question 4Which of the following is the number of households tuned in to a program HUT?
a. reach c. net HUT
b. frequency d. share
Question 5English is the most common website language.
Indicate whether the statement is true or false
Question 6The process of changing the original form of data to a format more suitable for achieving a stated research objective is called _____.
a. data conversion
b. reliability assessment
c. cross-checking
d. data mining
Question 7To calculate the optimal sample size, all of the following information is needed except
a. precision required c. estimate of population variance
b. level of confidence () d. sample mean
Question 8If the data are time-related, then a base year is usually chosen when calculating an index number.
Indicate whether the statement is true or false
Question 9Which of the following is defined as cost of a commercial rating?
a. cost per rating scheme c. effectiveness per rating
b. cost per rating point d. efficiency per rating
Question 10A unilingual website helps in accessing more new customers as compared to a multilingual website.
Indicate whether the statement is true or false
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