STA 301 - HW01

# STA 301 - HW01 - STA 301 Applied Statistics Spring 2008...

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STA 301 – Applied Statistics Spring 2008, Section B Homework #1 Due Friday, January 25 Question 1 : At the end of a semester, an instructor compiles his final grade distribution, resulting in the table below: Grade % Students A 25 B 30 C 25 D 15 F 5 This summary of class grades is an application of: Choose one: (a) descriptive statistics (b) inferential statistics Question 2 : Census—pros and cons (a) What is a census? (b) When might a census be useful? (c) When might a census be a bad idea?

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Homework 1 Page 2 of 3 Question 3 : A student would like to determine the average ACT score for incoming freshman at his school, but this information has not yet been published. He determines a way to obtain a simple random sample of 250 students, and learns that their average score is 25.3. (a) This overriding purpose of this study is an application of: Choose one: (i) descriptive statistics (ii) inferential statistics (b) What is the population of interest in this problem? (c)
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## This homework help was uploaded on 04/17/2008 for the course STA 301 taught by Professor Noe during the Spring '08 term at Miami University.

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STA 301 - HW01 - STA 301 Applied Statistics Spring 2008...

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