Stats and Fats Summer 2024 Stay at Home Test 1
For this test, please feel free to use 1) your notes, 2) the textbook, 3) my videos, and 4) the internet.
What's not allowed: 1) Submitting work that isn't your own. 2) Working on the test with others. All work and ideas
must be your own.
You can print this document and do your work here, annotate the PDF with your tablet, or copy the problems onto
your own paper and submit your work that way.
People can come up with statistics to prove anything, Kent. Forfty percent of all people know that . — Homer Simpson
6 points
1. Determine whether the given value is a statistic or a parameter. For each one, explain why.
a) Out of all SVC students, you ask 210 of them the amount of cash they have on them, which turns out to
be an average of $17.22.
• Circle one: STATISTIC PARAMETER
• Why?
b) The average age of cars driven by all SVC employees is 6.2 years.
• Circle one: STATISTIC PARAMETER
• Why?
10 points
2. Identify the type of sampling used in each of the following. For each one, explain why.
a) Skagit Transit randomly picks 12 of their busses during a certain week and gives a survey to all the
riders on those busses.
• Sampling Type:
• Why?
b) A QA specialist at Hexcel selects every 400th molded component that comes off the assembly line until
she has a sample of 150 components.
• Sampling Type:
• Why?
, c) Riverside Fitness randomly chooses 140 names from their entire membership roster and asks them
about their exercise habits.
• Sampling Type:
• Why?
d) A local politician divides his district into groups: low-income, middle-income, and high-income. He
then takes a random sample of households from each income level.
• Sampling Type:
• Why?
5 points
3. Is the following situation an observational study or an experiment? Abel secretly replaces his wife’s fresh-
ground Starbucks coffee with Folgers Instant Coffee to see if she can tell the difference. Explain why you
picked the answer you did.
• Circle one: OBSERVATIONAL STUDY EXPERIMENT
• Why?
6 points
4. Determine whether each of the given values are from a discrete or a continuous data set. You do not need
to explain your answers.
a) The temperature outside is 54 degrees.
Circle one: DISCRETE CONTINUOUS
b) The number of whales you saw on your last whale watching cruise was 5.
Circle one: DISCRETE CONTINUOUS
c) When playing a round of trivia on your phone, you got 7 out of 10 questions correct.
Circle one: DISCRETE CONTINUOUS
For this test, please feel free to use 1) your notes, 2) the textbook, 3) my videos, and 4) the internet.
What's not allowed: 1) Submitting work that isn't your own. 2) Working on the test with others. All work and ideas
must be your own.
You can print this document and do your work here, annotate the PDF with your tablet, or copy the problems onto
your own paper and submit your work that way.
People can come up with statistics to prove anything, Kent. Forfty percent of all people know that . — Homer Simpson
6 points
1. Determine whether the given value is a statistic or a parameter. For each one, explain why.
a) Out of all SVC students, you ask 210 of them the amount of cash they have on them, which turns out to
be an average of $17.22.
• Circle one: STATISTIC PARAMETER
• Why?
b) The average age of cars driven by all SVC employees is 6.2 years.
• Circle one: STATISTIC PARAMETER
• Why?
10 points
2. Identify the type of sampling used in each of the following. For each one, explain why.
a) Skagit Transit randomly picks 12 of their busses during a certain week and gives a survey to all the
riders on those busses.
• Sampling Type:
• Why?
b) A QA specialist at Hexcel selects every 400th molded component that comes off the assembly line until
she has a sample of 150 components.
• Sampling Type:
• Why?
, c) Riverside Fitness randomly chooses 140 names from their entire membership roster and asks them
about their exercise habits.
• Sampling Type:
• Why?
d) A local politician divides his district into groups: low-income, middle-income, and high-income. He
then takes a random sample of households from each income level.
• Sampling Type:
• Why?
5 points
3. Is the following situation an observational study or an experiment? Abel secretly replaces his wife’s fresh-
ground Starbucks coffee with Folgers Instant Coffee to see if she can tell the difference. Explain why you
picked the answer you did.
• Circle one: OBSERVATIONAL STUDY EXPERIMENT
• Why?
6 points
4. Determine whether each of the given values are from a discrete or a continuous data set. You do not need
to explain your answers.
a) The temperature outside is 54 degrees.
Circle one: DISCRETE CONTINUOUS
b) The number of whales you saw on your last whale watching cruise was 5.
Circle one: DISCRETE CONTINUOUS
c) When playing a round of trivia on your phone, you got 7 out of 10 questions correct.
Circle one: DISCRETE CONTINUOUS
