Use the sample data and confidence level given below to complete parts a through d.
a research institute poll asked respondents if they felt vulnerable to identity theft. in the poll, n=1096 and x=542 who said yes. use a 95% confidecne level.
a. find the best point of estimate of the population of portion p.
b. identify the value of the margin of error e.
e= round to four decimal places as needed.
c. construct the confidence interval.
_ < p < _ round to three decimal places.
d. write a statement that correctly interprets the confidence interval.

Step-by-step explanation:

Given that a research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=1096 and x=542 who said yes.

i.e. sample size =

who said yes =

Sample proportion =

Std error of proportion =

Margin of error 95%

Hence confidence interval for proportions

=

a) Point estimate

B) Margin of error =

C) Conf interval =

D) We are 95% confident that for large random samples representing the population, the proportion of yes will lie between these two values.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

5/20 so 25%

step-by-step explanation: