In Exercises 1.7-1.12, classify each of the studies as either descrip- tive or i
ID: 3349855 • Letter: I
Question
In Exercises 1.7-1.12, classify each of the studies as either descrip- tive or inferential. Explain your answers 1.7 TV Viewing Times. Data from a sample of Americans yielded the following estimates of average TV viewing time per month for all Americans 2 vears old and older. The times are in hours and minutes; Q1 stands for first quarter. [SOURCE: The Cross-Platform Report, Quarter, 2011. Published by The Nielsen Company 2011.] Viewing method QI 2011 | Q1 2010| Change (%) Watching TV in the home 158:47 Watching timeshifted TV DVR playback Using the Internet on a 158:25 10:469:36 26:1425:48 0.2 12.2 25:3325:54 4:33 3:23 4:20 3:37 computer Watching video on the Internet 34.5 Mobile subscribers watching video on a mobile phone 20.0Explanation / Answer
solution 1.7:
data provided are the viewing times for 2 year old
We can do hythosesis trsting to verify the claim that the average viewing time per month for all americans 2 years old and older.
it is inferential statistics
we infer(conclude) from data and it applies to population.
Solution1.9:
price per square foot,sale to list price ratio,% foreclosure re-sales are descriptive statistics.they describe data.
we can plot column chart to see for which city price per square foot is high/low,
we can also check for which city sale to list price ratio is high.(san francisco,las vegas).