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  1. mathematics
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  3. a. describe the pooled variance assumption. how do

a. Describe the Pooled variance assumption. How does it change the standard error? What impact does it...

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Question

Statistics

a.

Describe the Pooled variance assumption. How does it change thestandard error? What impact does it have on a test statistic? Whatimpact does it have on a p-value?

How do you justify making the assumption?

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b.

RepublicanDemocratLibertarian
Support18248
Don't Support14125

The above contingency table was created by asking a sample ofpeople in a given area if they support a measure taken by thegovernment.  

If The variables were independent how many Republicans in oursample would we expect to Support the measure proposed?

2.

ohn believes he randomly selects his choice in Rock PaperScissors.  

His friend challenges him to record what he chooses over thenext 3 months.  

Rock15
Paper19
Scissors21

Do a full hypothesis test to see if the data is trulybalanced.  

Answer & Explanation Solved by verified expert
4.1 Ratings (654 Votes)
1 a Pooled variance is used to combine together variances from different samples by taking their weighted average to get the    See Answer
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