# hw1sol - drugs are being approved each year Problem...

This preview shows pages 1–2. Sign up to view the full content.

Solutions to Homework 1 Problem 1.5 a. There are 5 variables in this data set. b. The variables “Sound Quality” and “FM Tuning” are qualitative. The variables “Price”, “CD Capacity”, and “Tape Decks” are quantitative. c. The average CD capacity is 3. d. 7 minisystems have FM tuning ratings of good or excellent. This is 70% of the min- isystems. e. 4 of the minisystems have 2 tape decks. This is 40% of the minisystems. Problem 1.11 a. Quantitative - Ratio Scale b. Qualitative - Ordinal Scale c. Qualitative - Ordinal Scale d. Quantitative - Ratio Scale e. Qualitative - Nominal Scale Problem 1.15 a. These data are quantitative. b. These data are time-series (the same data is collected for several diﬀerent time periods). c. About 20 new drugs were approved in 2003. d. The fewest new drugs were approved in 2002. About 18 new drugs were approved that year. e. The trend for this eight year perids appears to be downward. In general fewer new

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: drugs are being approved each year. Problem 1.21 (a,b) a. One population is women whose mothers took the drug DES during pregnancy. The other population is women whose mothers did not take the drug DES during pregnancy. b. For ethical reasons, this was probably a survey. 1 Problem 23 a. Nielsen is attempting to measure the popularity of each television program by showing the percentage of households that are watching the program. b. All households with televisions in the United States. c. It would be too expensive and time consuming to survey all households with televisions in the United States. d. The cancellation or renewal of television programs, advertising cost rates for the televi-sion programs and the scheduling of television programs are often based on the Nielsen information. 2...
View Full Document

{[ snackBarMessage ]}

### Page1 / 2

hw1sol - drugs are being approved each year Problem...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online