Determine the point estimate of the population proportion, the margin of error for the following confidence interval, and the number of individuals in the sample with the specified characteristic, x, for the sample size provided. lower bound=0.226,upper bound=0.604,n=1200the point estimate of the population is? round to the nearest thousandth as needed. the margin error is? round to the nearest thousandth as needed .the number of individuals in the sample with the specified characteristic is? round to the nearest integer as needed.

 The point estimate of the population is 0.415 round to the nearest thousandth as needed.the margin error is 0.189 .

Step-by-step explanation:

Let be the sample mean .

We know that the confidence interval for population mean is given by :-

, where E is the margin of error .  

Given : Lower bound of the confidence interval = 0.226  

Upper bound of the confidence interval  =0.604        

i.e.

Adding (1) from (2), we get

From (2),

Hence, the point estimate of the population is 0.415 round to the nearest thousandth as needed.the margin error is 0.189 .

step-by-step explanation:

i found the life tables for the year 2012. 

life table of males at age 30. probability of dying between ages x and x+1

total population:  

29–30 . . . . . . . . . . . . 0.001030

30–31 . . . . . . . . . . . . 0.001061

males:  

29–30 . . . . . . . . . . . . 0.001420

30–31 . . . . . . . . . . . . 0.001448

white population

29–30 . . . . . . . . . . . . 0.001005

30–31 . . . . . . . . . . . . 0.001037

white males

29–30 . . . . . . . . . . . . 0.001372

30–31 . . . . . . . . . . . . 0.001399

non hispanic white population

29–30 . . . . . . . . . . . . 0.001083

30–31 . . . . . . . . . . . . 0.001116

non hispanic white males

29–30 . . . . . . . . . . . . 0.001477

30–31 . . . . . . . . . . . . 0.001503

jacob, non hispanic white male. 30 years old.

probability that jacob lives to be 30 years old. 

since the given probabilities are probabilities of dying, i think we simply subtract it from 1 to get the probability of living. we will use the probability of non hispanic white male.

                                          probability of living to be 30 y.o.

29 - 30 : 1 - 0.001477 = 0.998523

30 - 31 : 1 - 0.001503 = 0.998497

320ft

step-by-step explanation:

120 divided by 3 equals 40

40 times 4=160

160 times 2=320