A prison official wants to estimate the proportion of cases of recidivism. Examining the records of 250 convicts, the official determines that there are 65 cases of recidivism.

1. For this sample, the estimated standard error is:

a. .020

b. .028

c. .040

d. .018

2. For this sample, a 99% confidence interval for the proportion of recidivism cases would be:

a. .178 to .342

b. .188 to .342

c. .188to.332

d. .178 to .332

3.. Assume the prison population is 1255 convicts. If so, then a 99% confidence interval for the proportion of recidivism cases would be:

a. .188 to .342

b. .196 to .342

c. .196 to .324

d. .188 to .324

answer

the correct answer is

explanation

the given function is

the excluded values are obtained by solving:

we factor to obtain:

the excluded values are

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.

b. 2 and 4

step-by-step explanation:

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)