Mathematics, 06.04.2021 08:30 webbhlharryteach
A random sample of 80 college students showed that 44 had driven a car during the day before the survey was conducted. Suppose that we are interested in forming a 80 percent confidence interval for the proportion of all college students who drove a car the day before the survey was conducted. Where appropriate, express your answer as a proportion (not a percentage). Round answers to three decimal places.
Answers: 3
, and a confidence level of 
, we have the following confidence interval of proportions.
.
, z is the value of Z that has a pvalue of 
, so 
. 
Another question on Mathematics
Mathematics, 21.06.2019 19:00
1. which of the following algebraic equations is equivalent to ? x^n = a a^n = x a^x = n x^a = n 2. 16^1/4= 1/2 2 4 3. (-36)^1/2= -6 1/6 no real number 4. 8^2/3= 4 8 16√2 )^5/2= 7,776 1/7,776 no real number 6. m ^ the square root of a^2m simplified is: 7. the square root of 3^3 times the square root of 2 simplified and in radical form is:
Answers: 2
Mathematics, 21.06.2019 22:00
Harry and jay are both flying on the same plane with an airline that randomly assigns seats to passengers. of the 182 total seats on the plane, 62 are window seats, 58 are middle seats, and the rest are aisle seats. what is the approximate probability that both harry and jay will be assigned aisle seats on the same plane? a. 11.48% b. 3.3% c. 2.08% d. 26.26%
Answers: 3
Mathematics, 21.06.2019 23:50
Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.
Answers: 3
Mathematics, 22.06.2019 00:00
The statements below can be used to prove that the triangles are similar. ? △abc ~ △xyz by the sss similarity theorem. which mathematical statement is missing? ∠b ≅ ∠y ∠b ≅ ∠z
Answers: 2
You know the right answer?
A random sample of 80 college students showed that 44 had driven a car during the day before the sur...
Questions
Mathematics, 31.03.2020 01:29
Mathematics, 31.03.2020 01:29
Mathematics, 31.03.2020 01:29
Biology, 31.03.2020 01:29
Biology, 31.03.2020 01:29
Mathematics, 31.03.2020 01:29
History, 31.03.2020 01:29
