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katerooshkie katerooshkie
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3 weeks ago

Consider a population of five families with the following data representing the number of pets in each family.

 

Family

Number of Pets

A

2

B

6

C

4

D

3

E

1


 

a.Determine the mean and the variance of the population.
b.There are ten possible samples of size 2 (sampling without replacement). List the 10 possible samples of size 2, and determine the mean of each sample.
c.Using the ten sample mean values, compute the mean and the standard error of the mean.

Textbook 

Essentials of Statistics for Business and Economics


Edition: 7th
Authors:
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OmfgtimmyOmfgtimmy
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More solutions for this book are available here


 

a.3.2 and 2.96
b. 
 

Possible Samples

Sample Means

 
 

AB

4   

 
 

AC

3   

 
 

AD

2.5

 
 

AE

1.5

 
 

BC

5   

 
 

BD

4.5

 
 

BE

3.5

 
 

CD

3.5

 
 

CE

2.5

 
 

DE

2   

 
  
c.3.2 and 1.11


1

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