4.8 Two Discrete Random Varlables: The Binomlal and the Polsson 4.42 A biologist randomly selects 10 portions of water, each equal to .1 cm³ in volume, from the local reservoir and counts the number of bacteria present in each portion. The biologist then totals the number of bacteria for the 10 portions to obtain an estimate of the number of bacteria per cubic centimeter present in the reservoir water. Is this a binomial experiment? Pol. Scl. 4.43 Examine the accompanying newspaper clipping. Does this sampling appear to satisfy the Blo. characteristics of a binomial experiment? A L M ENG 12:08 AM 71°F
4.8 Two Discrete Random Varlables: The Binomlal and the Polsson 4.42 A biologist randomly selects 10 portions of water, each equal to .1 cm³ in volume, from the local reservoir and counts the number of bacteria present in each portion. The biologist then totals the number of bacteria for the 10 portions to obtain an estimate of the number of bacteria per cubic centimeter present in the reservoir water. Is this a binomial experiment? Pol. Scl. 4.43 Examine the accompanying newspaper clipping. Does this sampling appear to satisfy the Blo. characteristics of a binomial experiment? A L M ENG 12:08 AM 71°F
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Question
question 4.42
![2 R. Lyman Ott, Michael Longnecker - An Introduction to Statistical Methods and Data Analysis-Cengage (2016).pdf - Adobe Reader
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b. Compute P(y= 2).
c. Compute P(y>7).
d. Compute P(2< y= 7).
Bookmarks
Enter your search term
W Contents
Bus.
4.41 A traditional call center has a simple mission: Agents have to answer customer calls fast
and end them as quickly as possible to move on to the next call. The quality of service rendered
by the call center was evaluated by recording the number of times a customer called the center
P Preface
+W Statistics &
back within a week of his or her initial call to the center.
Scientific Method
ET Surveys &
1
y = number of recalls
2
3
4
6
Experimental
Studies to gather
P(y)
.151
232
.354
.161
.067
.021
.014
Data
a. What is the probability that a customer will recall the center more than three times?
b. What is the probability that a customer will recall the center at least two times but
+ I Data Description
ET Probability &
less than five times?
Probability
Distributions
c. Suppose a call center must notify a supervisor if a customer recalls the center
more than four times within a week of his or her initial call. What proportion of
customers who contact the call center will require a supervisor to be contacted?
+P Inferences about
Population Central
Values
4.8
Two Discrete Random Variables: The Binomial and the Poisson
EP Inferences
4.42 A biologist randomly selects 10 portions of water, each equal to .1 cm³ in volume, from
the local reservoir and counts the number of bacteria present in each portion. The biologist then
totals the number of bacteria for the 10 portions to obtain an estimate of the number of bacteria
per cubic centimeter present in the reservoir water. Is this a binomial experiment?
Blo.
Comparing 2
Population Central
Values
+P Inferences about
Pol. Scl.
Population
Variances
4.43 Examine the accompanying newspaper clipping. Does this sampling appear to satisfy the
characteristics of a binomial experiment?
+ P Inferences about
more than 2
Population Central
Values
ENG 12:08 AM
P Type here to search
71°F
IN
9/25/2021
近](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F578e608f-887d-4de5-8143-66f6bb3ac247%2F60c22ddc-cee8-4526-b938-ee67556ef86d%2Fpg8s4pf_processed.png&w=3840&q=75)
Transcribed Image Text:2 R. Lyman Ott, Michael Longnecker - An Introduction to Statistical Methods and Data Analysis-Cengage (2016).pdf - Adobe Reader
File Edit View Window Help
215 (228 of 1179)
125%
Comment
Share
b. Compute P(y= 2).
c. Compute P(y>7).
d. Compute P(2< y= 7).
Bookmarks
Enter your search term
W Contents
Bus.
4.41 A traditional call center has a simple mission: Agents have to answer customer calls fast
and end them as quickly as possible to move on to the next call. The quality of service rendered
by the call center was evaluated by recording the number of times a customer called the center
P Preface
+W Statistics &
back within a week of his or her initial call to the center.
Scientific Method
ET Surveys &
1
y = number of recalls
2
3
4
6
Experimental
Studies to gather
P(y)
.151
232
.354
.161
.067
.021
.014
Data
a. What is the probability that a customer will recall the center more than three times?
b. What is the probability that a customer will recall the center at least two times but
+ I Data Description
ET Probability &
less than five times?
Probability
Distributions
c. Suppose a call center must notify a supervisor if a customer recalls the center
more than four times within a week of his or her initial call. What proportion of
customers who contact the call center will require a supervisor to be contacted?
+P Inferences about
Population Central
Values
4.8
Two Discrete Random Variables: The Binomial and the Poisson
EP Inferences
4.42 A biologist randomly selects 10 portions of water, each equal to .1 cm³ in volume, from
the local reservoir and counts the number of bacteria present in each portion. The biologist then
totals the number of bacteria for the 10 portions to obtain an estimate of the number of bacteria
per cubic centimeter present in the reservoir water. Is this a binomial experiment?
Blo.
Comparing 2
Population Central
Values
+P Inferences about
Pol. Scl.
Population
Variances
4.43 Examine the accompanying newspaper clipping. Does this sampling appear to satisfy the
characteristics of a binomial experiment?
+ P Inferences about
more than 2
Population Central
Values
ENG 12:08 AM
P Type here to search
71°F
IN
9/25/2021
近
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