Exam 30: The Normal Approximation to the Binomial Distribution

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True or False: To determine the probability of getting between 2 and 4 events of interest in a binomial distribution,you will find the area under the normal curve between X = 1.5 and 4.5.

(True/False)

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Question 21

TABLE 6-7 A company has 125 personal computers.The probability that any one of them will require repair on a given day is 0.15. -Referring to Table 6-7 and assuming that the number of computers that requires repair on a given day follows a binomial distribution,compute the probability that there will be exactly 10 computers that require repair on a given day using a normal approximation.

(Essay)

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Question 22

True or False: One of the reasons that a correction for continuity adjustment is needed when approximating the binomial distribution with a normal distribution is because the normal distribution is used for a discrete random variable while the binomial distribution is used for a continuous random variable.

(True/False)

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Question 23

True or False: To determine the probability of getting fewer than 3 events of interest in a binomial distribution,you will find the area under the normal curve for X = 3.5 and below.

(True/False)

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Question 24

True or False: One of the reasons that a correction for continuity adjustment is needed when approximating the binomial distribution with a normal distribution is because a random variable having a binomial distribution can have only a specified value while a random variable having a normal distribution can take on any values within an interval around that specified value.

(True/False)

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Question 25

TABLE 6-7 A company has 125 personal computers.The probability that any one of them will require repair on a given day is 0.15. -Referring to Table 6-7,which of the following is one of the properties required so that the binomial distribution can be used to compute the probability that no more than 2 computers will require repair on a given day?

(Multiple Choice)

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Question 26

True or False: To determine the probability of getting between 3 and 4 events of interest in a binomial distribution,you will find the area under the normal curve between X = 3.5 and 4.5.

(True/False)

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Question 27

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True or False: To determine the probability of getting between 2 and 4 events of interest in a binomial distribution,you will find the area under the normal curve between X = 1.5 and 4.5.

True or False: To determine the probability of getting fewer than 3 events of interest in a binomial distribution,you will find the area under the normal curve for X = 3.5 and below.

True or False: To determine the probability of getting between 3 and 4 events of interest in a binomial distribution,you will find the area under the normal curve between X = 3.5 and 4.5.

Defining and Collecting Data

Numerical Descriptive Measures

Basic Probability

Discrete Probability Distributions

The Normal Distribution and Other Continuous Distributions

Sampling Distributions

Confidence Interval Estimation

Fundamentals of Hypothesis Testing: One-Sample Tests

Two-Sample Tests

Analysis of Variance

Chi-Square Tests and Nonparametric Tests

Simple Linear Regression

Introduction to Multiple Regression

Multiple Regression Model Building

Time-Series Forecasting

A Roadmap for Analyzing Data

Statistical Applications in Quality Management

Decision Making

Index Numbers

Chi-Square Tests for the Variance or Standard Deviation

Mcnemar Test for the Difference Between Two Proportions Related Samples

The Analysis of Means Anom

The Analysis of Proportions Anop

The Randomized Block Design

The Power of a Test

Estimation and Sample Size Determination for Finite Populations

Application of Confidence Interval Estimation in Auditing

Sampling From Finite Populations

Counting Rules

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