Exam 1: Introduction to Statistics

On discovering an improperly adjusted drill press,Jack Joyner,Director of Quality Control,ordered a 100% inspection of all castings drilled during the evening shift.Jack is ordering a ___________________.

Miguel Hernandez ,Senior Vice President of Human Resources at Memorial Hospital,is exploring the usage of nursing over-time hours in the emergency department during the last operating year (January 1,2012 through December 31,2012).Miguel intends to survey the emergency department nurses regarding their perception of over-time needs.For this survey y the set of all emergency department nurses who worked at Memorial Hospital during the last operating year is _________.

Grades on a test range from 0 to 100.This level of data is _______.

Which of the following is not a random variable when flipping a coin?

A researcher wants to know what the average variation is in altimeters of small,privately owned airplanes.The task of determining this is expensive and time consuming,if even possible,given the large number of such airplanes.The researcher decides to use government records to randomly locate the owners of ten such planes and then get permission to test the altimeters.When the researcher is done,he will use the data gathered from the group of ten to reach conclusions about all small,privately owned airplanes.This process can best be described as _______.

A descriptive measure of the population is called a parameter.

What proportion of San Diego's registered voters favor trade restrictions with China? In an effort to determine this,a research team calls every registered voter in San Diego and contacts them.The proportion determined from the data gathered is a _______.

Members of the accounting department's clerical staff were asked to rate their supervisor's leadership style as either (1)authoritarian or (2)participatory.This is an example of _______ .

A list of final grades in an introductory class in business is an example of statistics

The manner in which numerical data can be analyzed statistically depends on the level of data measurement represented by numbers being analyzed.

A cancer research group was interested in determining the percentage of women 40 years or older that have regularly scheduled mammograms.To accomplish this,they surveyed 500 women in this age group and based on 155 women that responded affirmatively,estimated the percentage of all women in this age group that have regularly scheduled mammograms.This process is an example of _________

A portion or subset of the entities under study is called the statistic.

Which of the following statements about business statistics is not true?

Pinky Bauer,Chief Financial Officer of Harrison Haulers,Inc.,suspects irregularities in the payroll system,and orders an inspection of "each and every payroll voucher issued since January 1,2013." Pinky is ordering a __________________.

Which types of data are normally used in parametric statistics?

If it were not for the existence of an "absolute zero," ratio data would be considered the same as _______.

A marketing survey is conducted to ascertain the potentiality of several new products.A series of focus groups is used to conduct this survey.At the end of one of the sessions,the group members are asked to rank the remaining eight products in order of desirability.A one indicates the most favored product and an eight is awarded to the least desirable.These numbers are examples of which level of data?

Morningstar Mutual Funds analyzes the risk and performance of mutual funds.Each mutual fund is assigned an overall rating of one to five stars.One star is the lowest rating,and five stars is the highest rating.This level of measurement is __________.

Nominal and ordinal data are sometimes referred to as quantitative data.

Which of the following statements is correct?