Pooled

Determine whether or not the samples are pooled for tests

 

or intervals using the Student’s T-distribution involving two

 

means. From the Numeric view, set the value of Pooled.

 

In a program, type:

 

0 Pooled—for not pooled (default).

 

1 Pooled—for pooled.

s1

Sets the sample standard deviation for a hypothesis test or

 

confidence interval. For a test or interval involving the

 

difference of two means or two proportions, sets the

 

sample standard deviation of the first sample. From the

 

Numeric view, set the value of s1.

 

In a program, type:

 

n s1

s2

For a test or interval involving the difference of two means

 

or two proportions, sets the sample standard deviation of

 

the second sample. From the Numeric view, set the value

 

of s2.

 

In a program, type:

 

n s2

σ1

Sets the population standard deviation for a hypothesis

 

test or confidence interval. For a test or interval involving

 

the difference of two means or two proportions, sets the

 

population standard deviation of the first sample. From the

 

Numeric view, set the value of σ1.

 

In a program, type:

 

n σ1

σ2

For a test or interval involving the difference of two means

 

or two proportions, sets the population standard deviation

of the second sample. From the Numeric view, set the value of σ2.

In a program, type: n σ2

570

Programming in HP PPL

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HP Prime Graphing NW280AAABA  Pooled-for not pooled default,  Pooled-for pooled, Numeric view, set the value of s1