Suppose the u. s. president wants an estimate of the proportion of the population who support his current policy toward revisions in the health care system. the president wants the estimate to be within 0.03 of the true proportion. assume a 90% level of confidence. the president's political advisors estimated the proportion supporting the current policy to be 0.06.

a.
how large of a sample is required? (round up your answer to the next whole number.)

 170

Step-by-step explanation:

As per given , we have

The prior estimate to true population proportion:

Critical value for 90% confidence =

[using z-value table.]

Margin of error : E= 0.03

Formula to find the required sample size : -

Hence, the required minimum sample = 170

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

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