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# (Solved) MATH225 Week 1 Assignment Sampling Methods

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Question

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

• theÂ 75Â 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
• Â all parents

Question

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

• 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
• theÂ 125Â homeowners surveyed
• all homeowners

Question

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

• the percentage of all parents who use cloth diapers
• theÂ 200Â 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 ofÂ 25Â randomly selected students attending the college. What is the parameter?

• the heights of the randomly selected students
• the mean height of all students attending the college
• the mean height of the randomly selected students
• theÂ 25Â 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 ofÂ 200Â parents whether or not they use cloth diapers. What is the parameter?