Introduction to Statistics Milestone 1 Sophia
1.Jay wants to study nutrition and performance in schools using available data.
Which of the scenarios below will provide Jay with available data?: Going
to a local high school and asking the principal for information about
students' current and previous grades, then asking the health teacher
for the results from a survey students took in health class
2.Which of these random samples represents a representative sample of the number of students in a middle school who walk to school?: 150 random students at lunch
3.It's Saturday afternoon, and Denise is going shopping. She stops by a department store because she needs a new pair of shoes. She has picked out three styles that she likes. The store associate asks, "What is your shoe size?"
Which type of question has the store associate asked?: Closed question
4.A local gym conducts a survey among the people in a mall.
Which survey question would have a qualitative response?: Do you exercise daily?
5.The owner of a pizza parlor called every fifth person who ordered pizza last week to rate the pizza.
What type of statistical study is this?: A survey
6.A factory manufactures motorcycles. One of its employees, working in the quality control department, checks the first 10 and the last 10 motorcycles manufactured in a day.
This is what type of sampling?: Convenience sampling
7.An appliance store manager noted that the sales of home appliances contributed 74% of the store's profits in the year 2010 and 82% in the year 2011.
Of the following choices, which statement about home appliance sales is true?: Home appliance sales increased profits by 8 percentage points
8.Rob sent an email survey to 2,000 cell phone owners asking about their satisfaction with their current plan. Only 256 people returned the survey and they were predominately 18-24 years old.
Which of the following statements is true?: The survey likely has bias
because the people who could not answer differ from those who did
answer.
9.A travel agency contacted a department store and obtained the list of all people who made purchases using their credit cards at the store in the last
1.Jay wants to study nutrition and performance in schools using available data.
Which of the scenarios below will provide Jay with available data?: Going
to a local high school and asking the principal for information about
students' current and previous grades, then asking the health teacher
for the results from a survey students took in health class
2.Which of these random samples represents a representative sample of the number of students in a middle school who walk to school?: 150 random students at lunch
3.It's Saturday afternoon, and Denise is going shopping. She stops by a department store because she needs a new pair of shoes. She has picked out three styles that she likes. The store associate asks, "What is your shoe size?"
Which type of question has the store associate asked?: Closed question
4.A local gym conducts a survey among the people in a mall.
Which survey question would have a qualitative response?: Do you exercise daily?
5.The owner of a pizza parlor called every fifth person who ordered pizza last week to rate the pizza.
What type of statistical study is this?: A survey
6.A factory manufactures motorcycles. One of its employees, working in the quality control department, checks the first 10 and the last 10 motorcycles manufactured in a day.
This is what type of sampling?: Convenience sampling
7.An appliance store manager noted that the sales of home appliances contributed 74% of the store's profits in the year 2010 and 82% in the year 2011.
Of the following choices, which statement about home appliance sales is true?: Home appliance sales increased profits by 8 percentage points
8.Rob sent an email survey to 2,000 cell phone owners asking about their satisfaction with their current plan. Only 256 people returned the survey and they were predominately 18-24 years old.
Which of the following statements is true?: The survey likely has bias
because the people who could not answer differ from those who did
answer.
9.A travel agency contacted a department store and obtained the list of all people who made purchases using their credit cards at the store in the last
