Author Question: Sherrie is interested in average monthly sales for smartphones in the United States. She found ... (Read 130 times)

wrbasek0 · **on:** Jun 29, 2018

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 2

All 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

olderstudent · **Reply #1 on:** Jun 29, 2018

Answer to Question 1

C

Answer to Question 2

C
The size of the population is not normally a factor in calculating the required sample size, because most populations are relatively large.