Homework: Section 1-2
Determine whether the given value is from a discrete or continuous data set. When a car is randomly selected, it is found to have an engine with 142 hp. Choose the correct answer below.
A continuous data set because there are infinitely many possible values and those
Determine whether the value given below is from a discrete or continuous data set. The volume of cola in a can is 10.6 oz. Choose the correct answer below.
A continuous data set because there are infinitely many possible values and those
Which of the following is associated with a parameter? Choose the correct answer below.
Data that were obtained from an entire population.
Which of the following would be classified as categorical data? Choose the correct answer below.
Hair color
Which of the following consists of discrete data? Choose the correct answer below.
Number of suitcases on a plane
Which of the following is NOT a level of measurement? Choose the correct answer below.
Quantitative
Determine whether the underlined number is a statistic or a parameter. A sample of students is selected and it is found that 35% own a computer. Choose the correct statement below.
Statistic because the value is a numerical measurement describing a characteristic of a sample.
Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. Body temperature in degrees Fahrenheit Choose the correct answer below.
The interval level of measurement is most appropriate because the data can be ordered, differences can be found and are meaningful, and there is no natural starting zero
Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. Stress score where the mean is zero and the increments of measurement are equal Choose the correct answer below.
The interval level of measurement is most appropriate because the data can be ordered, differences (obtained by subtraction) can be found and are meaningful, and there is no natural starting zero
Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. Course grades from A to F Choose the correct answer below.
The ordinal level of measurement is most appropriate because the data can be ordered, but differences cannot be found or are meaningless.
The interval level of measurement is most appropriate because the data can be ordered, differences can be found and are meaningful, and there is no natural starting zero
The ordinal level of measurement is most appropriate because the data can be ordered, but differences (obtained by subtraction) cannot be found or are meaningless.
Determine whether the given value is a statistic or a parameter. A homeowner measured the voltage supplied to his home on 49 different days, and the average (mean) value is 118.8 volts. Choose the correct answer below.
The given value is a statistic for the year because the data collected represent a sample.
A particular country has 45 total states. If the areas of all 45 states are added and the sum is divided by 45, the result is 190,473 square kilometers. Determine whether this result is a statistic or a parameter. Choose the correct answer below.
The result is a parameter because it describes some characteristic of a population.
Determine whether the given value is a statistic or a parameter. A sample of 1572 men showed that 40% voted in the past election. Choose the correct answer below.
The value is a statistic because it is a numerical measurement describing some characteristic of a sample.
Determine whether the value is from a discrete or continuous data set. Frequency of a guitar note is 430 Hz Is the value from a discrete or continuous data set?
continuous
Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Years of elections: 1988, 1990, 1992, 1994, and 1996 Choose the correct answer below.
interval
Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Favorite musicians Choose the correct level of measurement.
nominal
Which level of measurement consists of categories only where data cannot be arranged in an ordering scheme? Choose the correct answer below.
nominal
Identify the level of measurement of the data, and explain what is wrong with the given calculation. In a survey, the eye colors of respondents are identified as 1 for brown eyes, 2 for blue eyes, 3 for green eyes, and 4 for anything else. The average (mean) is calculated for 540 respondents and the result is
nominal Such data are not counts or measures of anything, so it makes no sense to compute their average (mean).
identify the level of measurement of the data, and explain what is wrong with the given calculation. In a set of data, movie ratings are represented as 0 for 1 star, 1 for 2 stars, and 2 for 3 stars. The average (mean) of the 602 movie ratings is 0.9.
ordinal such data should not be used for calculations such as an average.
Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. Number of bushels of wheat Choose the correct answer below.
the ratio of measurement ...
Determine whether the given value is a statistic or a parameter. A survey found that 62% of all respondents were optimistic. Choose the correct answer below.
the value is a statistic because it is a numerical measurement describing some characteristic of a sample.
