2. The principal of a high school wants to know how long his students spend doing homework at night on average. He wishes to take a random sample of 60 students and record the number of hours spent on homework per night. a, Define the population, sample, parameter, and statistic. b) ' Is the variable of interest qualitative or quantitative? c) The receptionist suggests asking the first 60 students to enter the school library. Why might the principal not want to choose this type of sample?
2. The principal of a high school wants to know how long his students spend doing homework at night on average. He wishes to take a random sample of 60 students and record the number of hours spent on homework per night. a, Define the population, sample, parameter, and statistic. b) ' Is the variable of interest qualitative or quantitative? c) The receptionist suggests asking the first 60 students to enter the school library. Why might the principal not want to choose this type of sample?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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Question
Transcribed Image Text:2.
The principal of a high school wants to know how long his students
spend doing homework at night on average. He wishes to take a random sample
of 60 students and record the number of hours spent on homework per night.
Define the population, sample, parameter, and statistic.
b)
' Is the variable of interest qualitative or quantitative?
c)
The receptionist suggests asking the first 60 students to enter the school
library. Why might the principal not want to choose this type of sample?
d)
Name a better sampling method the principal could use. Describe how
this sample could be collected.
e)
The principal has decided to plot the results using a graph. Name an
appropriate graph he could use to visualize the data.
Expert Solution
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Since you have posted a question with multiple subparts we will solve first three subparts for you. To get remaining subparts solved, please repost the question and mention the subparts to be solved.
There are type of variable, they are quantitative and qualitative. The numerical variables are measured as quantitative and the non numerical variable are measured as qualitative. Population is the whole subject of study and any fraction of such population is known as sample. Population unknown value is parameter and the sample unknown value is statistic.
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