(Solved) MATH225 Week 1 Assignment Sampling Methods

Question

Sharon wants to estimate the percentage of parents who use cloth diapers. She asks a randomly selected group of 75 parents whether or not they use cloth diapers. What is the population?

Select the correct answer below:

• the 75 people surveyed
• specific “yes” or “no” responses to the survey
• the percentage of surveyed parents who use cloth diapers
• the percentage of all parents who use cloth diapers
•  all parents

Question

Douglas wants to estimate the percentage of homeowners that own at least one dog. He surveys 125 randomly selected homeowners to determine whether or not they own dogs. What is the statistic?

Select the correct answer below:

• the percentage of surveyed homeowners who own at least one dog
• specific responses to the survey
• the percentage of all homeowners who own at least one dog
• the 125 homeowners surveyed
• all homeowners

Question

Raymond wants to estimate the percentage of parents who use cloth diapers. He asks a randomly selected group of 200 parents whether or not they use cloth diapers. What is the data?

Select the correct answer below:

• the percentage of all parents who use cloth diapers
• the 200 people surveyed
• all parents who use cloth diapers
• the percentage of surveyed parents who use cloth diapers
• specific “yes” or “no” responses to the survey

Question

Thomas wants to estimate the mean height of students attending his college. He records the heights of 25 randomly selected students attending the college. What is the parameter?

Select the correct answer below:

• the heights of the randomly selected students
• the mean height of all students attending the college
• the mean height of the randomly selected students
• the 25 randomly selected students
• all the students attending the college

Question

Raymond wants to estimate the percentage of parents who use cloth diapers. He asks a randomly selected group of 200 parents whether or not they use cloth diapers. What is the parameter?

Select the correct answer below:

• the percentage of surveyed parents who use cloth diapers
• the 200 people surveyed
• specific “yes” or “no” responses to the survey
• the number of parents
• the percentage of all parents who use cloth diapers

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