Business Stats: Practice Questions for
Quiz Chapter 1
A summary measure that is computed from a sample to a describe a characteristic of the
population is called:
a) population
b) a statistic - correct answer-statistic
A summary measure that is computed from a population is called...
a) a statistic
b) a parameter - correct answer-parameter
Descriptive statistics deals with methods of:
a) organizing data
b) summarizing data
c) presenting data in a convenient and informative way
d) all of the above - correct answer-all of the above
in an application for a store credit card, potential customers are asked for their social
security numbers. A social security number is an example of:
a) quantitative
b) qualitative - correct answer-qualitative
which of the following is not the goal of descriptive statistics
a) estimating characteristics of the population
b) summarizing data - correct answer-estimating characteristics of the population
the average age in a sample of 50 workers at a company is 40. As a result of this sample, it
can be concluded that the average age of all workers at the Manufacturing Plant:
a) could not be 40
b) could be larger, smaller, or equal to 40 - correct answer-could be larger, smaller, or equal
to 40
what proportion of the data from a normal distribution is within three standard deviations
from the mean?
a) 0.9974
b) 0.9544 - correct answer-0.9974
Quiz Chapter 1
A summary measure that is computed from a sample to a describe a characteristic of the
population is called:
a) population
b) a statistic - correct answer-statistic
A summary measure that is computed from a population is called...
a) a statistic
b) a parameter - correct answer-parameter
Descriptive statistics deals with methods of:
a) organizing data
b) summarizing data
c) presenting data in a convenient and informative way
d) all of the above - correct answer-all of the above
in an application for a store credit card, potential customers are asked for their social
security numbers. A social security number is an example of:
a) quantitative
b) qualitative - correct answer-qualitative
which of the following is not the goal of descriptive statistics
a) estimating characteristics of the population
b) summarizing data - correct answer-estimating characteristics of the population
the average age in a sample of 50 workers at a company is 40. As a result of this sample, it
can be concluded that the average age of all workers at the Manufacturing Plant:
a) could not be 40
b) could be larger, smaller, or equal to 40 - correct answer-could be larger, smaller, or equal
to 40
what proportion of the data from a normal distribution is within three standard deviations
from the mean?
a) 0.9974
b) 0.9544 - correct answer-0.9974
