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# An introductory statistics instructor believes that the median number of hours that

ISBN: 9780321757272 73

## Solution for problem 2 Chapter 15

Statistics: Informed Decisions Using Data | 4th Edition

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Statistics: Informed Decisions Using Data | 4th Edition

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Problem 2

An introductory statistics instructor believes that the median number of hours that students study each week is less than 15. He randomly sampled 20 students, asked them to disclose the number of hours they study each week, and obtained the following data: 8 17 8 10 5 12 8 8 12 5 22 10 20 20 2 10 4 8 5 15 Source: Michael McCraith, Joliet Junior College Do the data indicate that the median number of hours that students study each week is less than 15? Use the a = 0.05 level of significance.

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Terms: Statistic­ data that represents a trait in a sample Parameter­ data that represents a trait in a population Respondents­ individuals who answer a survey Identifier Variable­ specific variable that is used to represent a person (social security number, login ID, etc) Bin­ the bars used in bar graph or histogram Quantitative data­ numerical data Discrete­ within a certain...

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