### MATH 1280 Introduction to Statistics – Midterm Exam – part 1

Portrait of Picasso, painted by Picasso, just for illustration

Midterm Part 1 – questions 1 to 3 include their answers (total questions is 16)

Consider the following study:
Marketing researchers Dominique and Huong wanted to know the following:
What percent of customers wear rain jackets at Seattle Food Store each day?”

In an attempt to answer that question, Dominique and Huong designed a study. They called the store manager and arranged to collect data for 20 days.

The researchers collected data for 4 hours each day for 20 days and counted the total number of shoppers who did and did not wear a rain jacket.

The average number of customers per day who wore a rain jacket during the sample period was 32.

1) The population in this study was (read each answer and select the best one):
Select one:
a. All shoppers in Seattle.
b. All people who wear rain jackets.
c. All shoppers at the Seattle Food Store
d. All shoppers at the Seattle Food Store during the study period.
e. The 32 people per day who wore rain jackets to the Seattle Food Store.

Answer: c. All shoppers at the Seattle Food Store….> Correct

Old guitarist, painted by Picasso

2) The sample in this survey was:
Select one:
a. Dominique and Huong.
b. The people who were observed shopping at the Seattle Food Store during the study
c. The people who wear rain jackets.
d. The four hours per day that were studied.
e. The 32 people per day who wore rain jackets to the Seattle Food Store.

Answer: b. The people who were observed shopping at the Seattle Food Store during the study

Violin and grapes, painted by Picasso

3) How would you describe the possibility that the sample was biased (read all answers and select the best one):
Select one:
a. There is no bias because the sample was large.
b. There is no bias because the multiple days were sampled.
c. There could be bias because the selected days might not be representative of all the days (such as changing weather)
d. Not enough information to determine the answer. Incorrect

Answer: c. There could be bias because the selected days might not be representative of all the days (such as changing weather).

1. Interesting math study. I love these Picasso choices. Old Guitarist is a beauty.

1. yes, Picasso is one of brilliant artists...

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MATH 1280 Introduction to Statistics – Midterm Exam – part 1
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Portrait of Picasso, painted by Picasso, just for illustration

Midterm Part 1 – questions 1 to 3 include their answers (total questions is 16)

2. I am so so sorry, Tanza. This is another great informative post, full of interesting stats. BUT, my brain is "fried"...went on vacation as soon as my care giving duties ended at 6:00 pm today.

Maybe I can digest better after the weekend. In the meantime, great post. Thanks for sharing it.

Wishing you a wonderful weekend!

1. I see....have a great vacation...

Thank you to visit:
MATH 1280 Introduction to Statistics – Midterm Exam – part 1
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Consider the following study:
Marketing researchers Dominique and Huong wanted to know the following:
“What percent of customers wear rain jackets at Seattle Food Store each day?”

3. Interesting questions :)

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MATH 1280 Introduction to Statistics – Midterm Exam – part 1
@
In an attempt to answer that question, Dominique and Huong designed a study. They called the store manager and arranged to collect data for 20 days.

2. MATH 1280 Introduction to Statistics – Midterm Exam – part 1

4. i do not like maths:D

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MATH 1280 Introduction to Statistics – Midterm Exam – part 1
@
The researchers collected data for 4 hours each day for 20 days and counted the total number of shoppers who did and did not wear a rain jacket.

5. Tanza, you do not tell us to what age group this study is aimed. The questions seem very simple.

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MATH 1280 Introduction to Statistics – Midterm Exam – part 1
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The average number of customers per day who wore a rain jacket during the sample period was 32.

6. I loved Maths in school!

1. Thank you to visit:
MATH 1280 Introduction to Statistics – Midterm Exam – part 1
@
1) The population in this study was (read each answer and select the best one):
Select one:
a. All shoppers in Seattle.
b. All people who wear rain jackets.
c. All shoppers at the Seattle Food Store
d. All shoppers at the Seattle Food Store during the study period.
e. The 32 people per day who wore rain jackets to the Seattle Food Store.

Answer: c. All shoppers at the Seattle Food Store….> Correct

7. Useful information...

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MATH 1280 Introduction to Statistics – Midterm Exam – part 1
@
Old guitarist, painted by Picasso

8. So much great information!!

1. Thank you to visit:
MATH 1280 Introduction to Statistics – Midterm Exam – part 1
@
2) The sample in this survey was:
Select one:
a. Dominique and Huong.
b. The people who were observed shopping at the Seattle Food Store during the study
c. The people who wear rain jackets.
d. The four hours per day that were studied.
e. The 32 people per day who wore rain jackets to the Seattle Food Store.

Answer: b. The people who were observed shopping at the Seattle Food Store during the study

9. Great paintings☺

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MATH 1280 Introduction to Statistics – Midterm Exam – part 1
@
Violin and grapes, painted by Picasso

10. Best General knowledge platform. Thank you for the Author.
Sandy recent posted
types of graphics design

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MATH 1280 Introduction to Statistics – Midterm Exam – part 1
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3) How would you describe the possibility that the sample was biased (read all answers and select the best one):
Select one:
a. There is no bias because the sample was large.
b. There is no bias because the multiple days were sampled.
c. There could be bias because the selected days might not be representative of all the days (such as changing weather)
d. Not enough information to determine the answer. Incorrect

Answer: c. There could be bias because the selected days might not be representative of all the days (such as changing weather).

11. interesting post ☺
I learned a lot of things - thank you ☺
greetings
Lili

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MATH 1280 Introduction to Statistics – Midterm Exam – part 1
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Portrait of Picasso, painted by Picasso, just for illustration

2. MATH 1280 Introduction to Statistics – Midterm Exam – part 1

12. It's very interesting article, I love Math, algebra more than geometric hhhh,

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MATH 1280 Introduction to Statistics – Midterm Exam – part 1
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Midterm Part 1 – questions 1 to 3 include their answers (total questions is 16)

Consider the following study:
Marketing researchers Dominique and Huong wanted to know the following:
“What percent of customers wear rain jackets at Seattle Food Store each day?”

In an attempt to answer that question, Dominique and Huong designed a study. They called the store manager and arranged to collect data for 20 days.

The researchers collected data for 4 hours each day for 20 days and counted the total number of shoppers who did and did not wear a rain jacket.

The average number of customers per day who wore a rain jacket during the sample period was 32.

13. I don't know about the maths, but the pictures you chose to illustrate it are wonderful.

1. Thank you to visit:
MATH 1280 Introduction to Statistics – Midterm Exam – part 1
@
1) The population in this study was (read each answer and select the best one):
Select one:
a. All shoppers in Seattle.
b. All people who wear rain jackets.
c. All shoppers at the Seattle Food Store
d. All shoppers at the Seattle Food Store during the study period.
e. The 32 people per day who wore rain jackets to the Seattle Food Store.

Answer: c. All shoppers at the Seattle Food Store….> Correct

14. Sounds interesting!

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MATH 1280 Introduction to Statistics – Midterm Exam – part 1
@
2) The sample in this survey was:
Select one:
a. Dominique and Huong.
b. The people who were observed shopping at the Seattle Food Store during the study
c. The people who wear rain jackets.
d. The four hours per day that were studied.
e. The 32 people per day who wore rain jackets to the Seattle Food Store.

Answer: b. The people who were observed shopping at the Seattle Food Store during the study