Planmaking:statistics based Flashcards
This type of survey gathers information about a population at a single point in time.
cross-sectional survey
This type of survey are taken over a period of time.
longitudinal surveys
This type of survey can be mailed, printed in a newspaper, or administered in a group setting.
Very popular when a planner is trying to obtain information from a broad audience, such as general opinions about the community.
Low-cost survey method with low response rate, averaging around 20 percent.
written surveys
What are five characteristics of phone surveys
a. This type of survey is useful when you need yes/no answers.
b. Allows the interviewer to follow up and gain further explanation on answers
c. Can be expensive
d. Can be biased due to interaction with interviewer
e. Long questions with multiple answers don’t work well with this method.
What scale does the US geological survey use?
1:24,000 scale
What does 1:24,000 represent?
1 inch represents 2,000 linear feet
What does 1:62,500 represent?
1 inch represents .98 miles
what does 1: 500,000 represent?
1 inch equals 7.89 miles
what does 1:2,000,000 represent?
1 inch equals 31.57 miles
How many inches are in a foot?
12 inches
How many feet are in a mile?
5280
what type of statistics describe the characteristics of a population?
descriptive statistics
what type of statistics determine characteristics of a population based on observations made on a sample from that population? We infer things about the population based on what is observed in the sample
inferential statistics
What is the average of a distribution?
mean
What is the middle number of a ranked distribution?
median
Race, social security, and sex are examples of what kind of data?
nominal data( classified into mutually exclusive groups that lack intrinsic order)
Educational attainment or a letter grade on a test are examples of what kind of data? (ranked so that inferences can be made regarding the magnitude)
ordinal data
This type of data has an ordered relationship and equal intervals. For example: 3.2 miles is twice as long as 1.6 miles.
ratio data
this ratio method is relatively simple way to estimate or project population. This method uses the ratio of the population in a city and a county (or larger) at a known point in time.
step down ratio method
this method of population estimation uses the current population plus natural increase and net migration to calculate a future population. The population is calculated for men and women in specific age
Cohort Survival Method
This analysis looks at basic and non-basic economic activities. Basic activities are those that can be exported, while non-basic activities are those that are locally oriented. The exporting industries make up the economic base of a region
economic base analysis
This ratio of a an industry’s share of local employment divided by its share of the nation (or other level of government)
location quotient
This type of analysis looks at a local economy comparison with a larger economy.
Shift-share analysis, example one may wish to compare employment by industry between 1990 and 2000. The total employment change in an industry between 1990 and 2000 is equal to the economic growth plus the differential shift plus the proportional
What are 4 important facts about 2000 census?
a. Was mailed to each household using the 1990 Census address information, U.S. Postal Service files, and, in metropolitan statistical areas, the local update of Census addresses.
b. represented the sample population
c. Approximately 83% of households received the short form. The 2000 Census short form was the “shortest” since 1820: addressed only seven subjects: name, age, gender, race, Hispanic ethnicity, relationships between household members, and whether the home was rented or owned by the householder.
d. the first time allowed the respondents to select more than one race that they identify as
