a. For the variables Price, Overall Score, Voice Quality, and Talk Time, which variables are categorical and which variables are quantitative?
b. What scale of measurement is used for each variable?
c. What is the average price for the phones?
d. What is the median price for the phones?
e. What is the 70th percentile for the price data?
f. What percentage of the phones have a voice quality of "very good"?
Voice Quality has possible ratings of poor, fair, good, very good, and excellent. Talk Time is the manufacturer's claim of how long the handset can be used when it is fully charged. How many elements are in this data set? For the variables Price, Overall Score, Voice Quality, Handset on Base, and Talk Time, which variables are categorical and which variables are quantitative?
Refer to the data set in Table 1.7. What is the average price for the cordless telephones? What is the average talk time for the cordless telephones? What percentage of the cordless telephones have a voice quality of excellent? What percentage of the cordless telephones have a handset on the base?