# Week 1 Checkpoint

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These are the automatically computed results of your exam. Grades for essay questions, and comments from your instructor, are in the "Details" section below.
Date Taken:
6/11/2012
Time Spent:
01 min , 13 secs
21 / 60 (35%)

Question Type:
# Of Questions:
# Correct:
Multiple Choice
13
9
Short
5
N/A

Page:
1 2

1.
Question :
(TCO 11) Define point estimate.

Student Answer: Approximation of a single quantity or a single numerical value, instead of that of a whole range of values. Instructor Explanation:
A point estimate occurs when a single value, which is the result of sampling, is used to estimate a population parameter. (See p. 501)

2.
Question :
(TCO 11) Define standard error of the mean.

Student Answer: Standard error measures the accuracy with a sample taht represents a population. Instructor Explanation:
The standard error of the mean is the standard deviation of the sample mean. (See p. 505)

3.
Question :
(TCO 11) Differentiate between an enumerative study and an analytic study. Which type of study is more appropriate for descriptive statistics, hypothesis testing on the population mean, and time-series analysis?

Student Answer: Enrumerative study is the study and analysis of a static population while analytic study is the analysis of a dynamic time series. For a desriptive statistics, which is analyzing existing data, the enumerative study is suitable, while for hypothesis testing on population mean and tie series analysis, an analytic study is more appropriate. Instructor Explanation:
The analysis of a static population is referred to as an enumerative study, and the analysis of a dynamic time series is referred to as an analytic study. Enumerative studies are more appropriate for descriptive statistics and hypothesis testing on the population mean

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