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Stats

Kayla Loos 35 preguntas

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Preguntas del test (35)

  1. 1A company has three divisions and three conference rooms for meetings. To keep track of the use of their facilities, for each meeting held in the company, the division holding the meeting is recorded, and the length of time of the meeting is recorded. Which of the following is quantitative?
    1. AThe division holding the meeting
    2. BThe conference room for the meeting
    3. CThe length of time for the meeting
    4. DAll of the answer options are correct
  2. 2A description of different houses for sale includes the following variables. Which of the variables are categorical?
    1. AThe square footage of the house
    2. BWhether or not the house has a finished basement
    3. CThe monthly electric bill
    4. DAll the answer options are correct
  3. 3A large university is divided into six colleges, with most students graduating from four of these colleges. The following bar chart gives the distribution of the percent of students graduating from the four most popular colleges in 2003. The percent of students graduating from either engineering or business is: Imagen de la pregunta 3
    1. AApproximately 30%
    2. BApproximately 40%
    3. CApproximately 50%
    4. DOver 60%
  4. 4A large university is divided into six colleges, with most students graduating from four of these colleges. The following bar chart gives the distribution of the percent graduating from the four most popular colleges in 2013. Which statement is CORRECT?Imagen de la pregunta 4
    1. AA time plot of the 2003 distribution would be more informative
    2. BThe bar graph is skewed to the right
    3. CThe bar graph is skewed to the left
    4. DNone of the answers are correct
  5. 5A poll was conducted of more than 50,000 buyers of new cars, 90 days after the car's purchase. The data on problems per 100 vehicles for vehicles made by Toyota and General Motors are given in the time plot below for the years 1998-2004. The solid line is for General Motors, and the dashed line is for Toyota. In 2002, the number of problems per 100 vehicles was:Imagen de la pregunta 5
    1. AAbout twice as high for General Motors as for Toyota
    2. BAbout twice as high for Toyota than for General Motors
    3. CAbout 20% higher for Toyota than General Motors
    4. DAbout 20% higher for General Motors than for Toyota
  6. 6A poll was conducted of more than 50,000 buyers of new cars, 90 days after the car's purchase. The data on problems per 100 vehicles for vehicles made by Toyota and General Motors are given in the time plot below for the years 1998-2004. The solid line is for General Motors, and the dashed line is for Toyota. Which statement is TRUE?Imagen de la pregunta 6
    1. AThe quality of cars is getting poorer for both companies
    2. BThe number of problems was higher for General Motors than for Toyota in each year
    3. CThe difference in the number of problems per 100 vehicles between General Motors and Toyota is less than 30 for each year
    4. DAll of the answer options are correct
  7. 7As part of a database of new births at a hospital, some variables recorded are the age of the mother, marital status of the mother (single, married, divorced), Weight of the baby, and sex of the baby. Of these variables, which is correct:
    1. AThe individuals described are mothers and babies involved in births at a hospital
    2. BAge of the mother and weight of the baby are quantitative variables
    3. CSex and marital status are categorical variables
    4. DAll of the answer options are correct
  8. 8Employees at a large company are surveyed about their health insurance status. Employees are coded as "1" if health insurance is obtained through the company's benefit program, "2" if health insurance is obtained from another source (eg. Through a spouse's employment benefit program), or "0" if the employee does not have health insurance. This variable is:
    1. ANumerical
    2. BCategorical
    3. CQuantitatively categorical
    4. DAll of the options are correct
  9. 9Physicians take a sample of smokers and non-smokers and record the time it takes them to fall asleep on seven consecutive nights. What is the individual?
    1. Athe physicians
    2. Bthe average time it takes to fall asleep on the seven nights
    3. Cthe smokers and non-smokers
    4. Dthe amount of time it takes to fall asleep each night
  10. 10Physicians take a sample of smokers and non-smokers and record the time it takes them to fall asleep on seven consecutive nights. What is the variable of interest?
    1. Athe physicians
    2. Bthe average time it takes to fall asleep on the seven nights
    3. Cthe smokers and non-smokers
    4. Dthe amount of time it takes to fall asleep each night

Información

Descripción
(Statistics and research) Nursing Test sobre Stats, creado por Kayla Loos el 17/02/2018.
Idioma
English
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