In a sample of 500 adults, 345 had children. Construct a 99% confidence interval for the true population proportion of adults with children.

The 99% confidence interval for the true population proportion of adults with children is (0.6367, 0.7433).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.

In which

z is the z-score that has a p-value of .

In a sample of 500 adults, 345 had children.

This means that

99% confidence level

So , z is the value of Z that has a p-value of , so .

The lower limit of this interval is:

The upper limit of this interval is:

The 99% confidence interval for the true population proportion of adults with children is (0.6367, 0.7433).

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

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