## Related questions with answers

Question

The earlier exercise presents the results of a poll evaluating support for the health care public option plan in 2009. $70 \%$ of 819 Democrats and $42 \%$ of 783 Independents support the public option.

(a) Calculate a $95 \%$ confidence interval for the difference between $\left(p_D-p_I\right)$ and interpret it in this context. We have already checked conditions for you.

(b) True or false: If we had picked a random Democrat and a random Independent at the time of this poll, it is more likely that the Democrat would support the public option than the Independent.

Solution

VerifiedAnswered two weeks ago

Answered two weeks ago

Step 1

1 of 3Given:

$n_1=819$

$\hat{p}_1=70\%=0.70$

$n_2=783$

$\hat{p}_2=42\%=0.42$

$c=95\%=0.95$

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