Question 1

A Yes or No question is _____________.

Accepted Answer

A) Dichotomous 
B) Multiple choice 
C) Open-ended 
D) Systematic 
A) Dichotomous 
B) Multiple choice 
C) Open-ended 
D) Systematic

Question 2

A random sample of size 1,000 is taken from a population where p = .20.Describe the sampling distribution of   .

Accepted Answer

A) Cannot be determined 
B) Approximately normal 
C) Skewed to the left 
D) Skewed to the right 
A) Cannot be determined 
B) Approximately normal 
C) Skewed to the left 
D) Skewed to the right

Question 3

Find σx,if μ = 400,P(   < 396)= .0228,and n = 100.

Accepted Answer

A) 0.20 
B) 200 
C) 20 
D) 2.00 
A) 0.20 
B) 200 
C) 20 
D) 2.00

Question 4

The sampling distribution of the sample mean is a normal distribution for ________ sample sizes,regardless of the shape of the corresponding population distribution.

Accepted Answer

A) Random 
B) Large 
C) Larger than 50 
D) Small 
A) Random 
B) Large 
C) Larger than 50 
D) Small

Question 5

As the sample size ______________,the variation of the sampling distribution of   ___________.

Accepted Answer

A) Decreases,decreases 
B) Increases,remains the same 
C) Decreases,remains the same 
D) Increases,decreases 
E) None of these 
A) Decreases,decreases 
B) Increases,remains the same 
C) Decreases,remains the same 
D) Increases,decreases 
E) None of these

Question 6

If the sampled population is finite and at least _____ times larger than the sample size,we treat the population as infinite.

Accepted Answer

A) 5 
B) 20 
C) 30 
D) 10 
A) 5 
B) 20 
C) 30 
D) 10

Question 7

Consider a sampling distribution formed based on n = 3.The standard deviation of the population of all sample means   is ______________ less than the standard deviation of the population of individual measurements σ.

Accepted Answer

A) Always 
B) Sometimes 
C) Never 
A) Always 
B) Sometimes 
C) Never

Question 8

The internal auditing staff of a local manufacturing company performs a sample audit each quarter to estimate the proportion of accounts that are more than 90 days overdue (delinquent).The historical records of the company show that over the past 8 years,the average has been that 14 percent of the accounts have been delinquent.For this quarter,the auditing staff randomly selected 250 customer accounts.What is the probability that at least 30 accounts will be classified as delinquent?

Accepted Answer

A) 31.86% 
B) 18.14% 
C) 81.86% 
D) 63.72% 
E) 75.84% 
A) 31.86% 
B) 18.14% 
C) 81.86% 
D) 63.72% 
E) 75.84%

Question 9

Find P(   > 172),if μ = 175 and   = 9.

Accepted Answer

A) .1587 
B) .8413 
C) .6293 
D) .3707 
A) .1587 
B) .8413 
C) .6293 
D) .3707

Question 10

A theorem that allows us to use the normal probability distribution to approximate the sampling distribution of sample means and sample proportions whenever the sample size is large is known as _______________.

Accepted Answer

A) Cluster sampling 
B) Sampling error 
C) Sampling distribution of the mean 
D) The Central Limit Theorem 
A) Cluster sampling 
B) Sampling error 
C) Sampling distribution of the mean 
D) The Central Limit Theorem

Question 11

Nonoverlapping groups in random sampling of a population are called:

Accepted Answer

A) Clusters. 
B) A frame. 
C) Strata. 
D) Stages. 
A) Clusters. 
B) A frame. 
C) Strata. 
D) Stages.

A Yes or No question is _____________.

A random sample of size 1,000 is taken from a population where p = .20.Describe the sampling distribution of .

Find σ_x,if μ = 400,P( < 396)= .0228,and n = 100.

The sampling distribution of the sample mean is a normal distribution for ________ sample sizes,regardless of the shape of the corresponding population distribution.

As the sample size ____,the variation of the sampling distribution of _.

If the sampled population is finite and at least _____ times larger than the sample size,we treat the population as infinite.

Consider a sampling distribution formed based on n = 3.The standard deviation of the population of all sample means is ______________ less than the standard deviation of the population of individual measurements σ.

Find P( > 172),if μ = 175 and = 9.

A theorem that allows us to use the normal probability distribution to approximate the sampling distribution of sample means and sample proportions whenever the sample size is large is known as _______________.

Nonoverlapping groups in random sampling of a population are called:

An Introduction to Business Statistics

Descriptive Statistics: Tabular and Graphical Methods

Descriptive Statistics: Numerical Methods

Probability

Discrete Random Variables

Continuous Random Variables

Confidence Intervals

Hypothesis Testing

Statistical Inferences Based on Two Samples

Experimental Design and Analysis of Variance

Chi-Square Tests

Simple Linear Regression Analysis

Multiple Regression and Model Building

Process Improvement Using Control Charts

Filters

Exam 7: Sampling and Sampling Distributions

A Yes or No question is _____________.

A random sample of size 1,000 is taken from a population where p = .20.Describe the sampling distribution of .

Find σx,if μ = 400,P( < 396)= .0228,and n = 100.

The sampling distribution of the sample mean is a normal distribution for ________ sample sizes,regardless of the shape of the corresponding population distribution.

As the sample size ______________,the variation of the sampling distribution of ___________.

If the sampled population is finite and at least _____ times larger than the sample size,we treat the population as infinite.

Consider a sampling distribution formed based on n = 3.The standard deviation of the population of all sample means is ______________ less than the standard deviation of the population of individual measurements σ.

Find P( > 172),if μ = 175 and = 9.

A theorem that allows us to use the normal probability distribution to approximate the sampling distribution of sample means and sample proportions whenever the sample size is large is known as _______________.

Nonoverlapping groups in random sampling of a population are called:

An Introduction to Business Statistics

Descriptive Statistics: Tabular and Graphical Methods

Descriptive Statistics: Numerical Methods

Probability

Discrete Random Variables

Continuous Random Variables

Confidence Intervals

Hypothesis Testing

Statistical Inferences Based on Two Samples

Experimental Design and Analysis of Variance

Chi-Square Tests

Simple Linear Regression Analysis

Multiple Regression and Model Building

Process Improvement Using Control Charts

Filters

Find σ_x,if μ = 400,P( < 396)= .0228,and n = 100.

As the sample size ____,the variation of the sampling distribution of _.