Chapter 1: Q 1.16 (page 32)
1.16 From Table 1.13, find the number of towns that have rainfall between 2.95 and 9.01 inches
Short Answer
The percentage of rainfall between 2.95 and 9.01 inches is 28.
Chapter 1: Q 1.16 (page 32)
1.16 From Table 1.13, find the number of towns that have rainfall between 2.95 and 9.01 inches
The percentage of rainfall between 2.95 and 9.01 inches is 28.
All the tools & learning materials you need for study success - in one app.
Get started for freeA marriage counselor is interested in the proportion of clients she counsels who stay married.
List some practical difficulties involved in getting accurate results from a mailed survey.
Determine the correct data type (quantitative or qualitative) for the number of cars in a parking lot. Indicate whether quantitative data are continuous or discrete.
The graph in Figure shows the number of complaints for six different airlines as reported to the US Department of Transportation in February . Alaska, Pinnacle, and Airtran Airlines have far fewer complaints reported than American, Delta, and United. Can we conclude that American, Delta, and United are the worst airline carriers since they have the most complaints?
Use the following information to answer the next seven exercises: Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose that a new AIDS antibody drug is currently under study. It is given to patients once the AIDS symptoms have revealed themselves. Of interest is the average (mean) length of time in months patients live once starting the treatment. Two researchers each follow a different set of 40 AIDS patients from the start of treatment until their deaths. The following data (in months) are collected.
Researcher A: 3; 4; 11; 15; 16; 17; 22; 44; 37; 16; 14; 24; 25; 15; 26; 27; 33; 29; 35; 44; 13; 21; 22; 10; 12; 8; 40; 32; 26; 27; 31; 34; 29; 17; 8; 24; 18; 47; 33; 34
Researcher B: 3; 14; 11; 5; 16; 17; 28; 41; 31; 18; 14; 14; 26; 25; 21; 22; 31; 2; 35; 44; 23; 21; 21; 16; 12; 18; 41; 22; 16; 25; 33; 34; 29; 13; 18; 24; 23; 42; 33; 29
Suppose that the second researcher conducted his survey by choosing 40 patients he knew. What sampling method would that researcher have used? What concerns would you have about this data set, based upon the data collection method?
What do you think about this solution?
We value your feedback to improve our textbook solutions.