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The type of household for the U.S. population and for a random sample of 411 households...

The type of household for the U.S. population and for a random sample of 411 households from a community in Montana are shown below.

Type of Household Percent of U.S.
Households		 Observed Number
of Households in
the Community
Married with children 26%         97            
Married, no children 29%         123            
Single parent 9%         32            
One person 25%         88            
Other (e.g., roommates, siblings) 11%         71            


(b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to two decimal places. Round the test statistic to three decimal places.)

c) What are the degrees of freedom?

(d) Find or estimate the P-value of the sample test statistic. (Round your answer to three decimal places.)

Math   Statistics-And-Probability   
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