Question

In: Statistics and Probability

A 2010 poll asked people in the United States whether they were satisfied with their financial...

A

2010

poll asked people in the United States whether they were satisfied with their financial situation. A total of

338

out of

833

people said they were satisfied. The same question was asked in

2012

, and

304

out of

1156

people said they were satisfied.

Part: 0 / 2

0 of 2 Parts Complete

Part 1 of 2

(a) Construct a

99.8%

confidence interval for the difference between the proportions of adults who said they were satisfied in

2012

and

2010

. Let

p1

denote the proportion of adults who said they were satisfied in

2010

.Use tables to find the critical value and round the answer to at least three decimal places.

A

99.8%

confidence interval for the difference between the proportions of adults who said they were satisfied in

2012

and

2010

is  

<<−p1p2.

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orchestra answered 1 year ago
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