In a town of 20,000, there are 12,000 voters, of whom 6000 are registered democrats and 5000

Question:

In a town of 20,000, there are 12,000 voters, of whom 6000 are registered democrats and 5000 are registered republicans. An exit poll is taken of 200 voters. Assume all registered voters actually voted. Use R to find:

(a) The mean and standard deviation of the number of democrats in the sample;

(b) The probability that more than half the sample are republicans.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Probability With Applications and R

ISBN: 978-1118241257

1st edition

Authors: Robert P. Dobrow

See More Books

Question Posted: Oct 13, 2018 08:04 AM

See More Questions

Because of population growth, the state of Washington has been given an additional seat in the House of Representatives, making a total of 10. The state legislature, which is currently controlled by...
How likely are you to vote in the next national election? In a survey by Pew Research, fully 77% of the registered Republican voters are absolutely going to vote this year while only 65% of Democrats...
Pronto Pizza is a family-owned pizza restaurant in Vinemont, a small town of 20,000 people in upstate New York. Antonio Scapelli started the business 30 years ago as Antonios Restaurant with just a...
Jason is unhappy with the performance of his mutual fund. He sells his shares in the current fund and repurchases shares in a similar fund with the same firm. This transaction may not be a taxable...
Nature Made Snacks just received an order to produce 12,000 single-serving bags of gourmet, fancy-cut, sweet potato chips. The order will require 21 preparation hours and 36 cooking and draining...
Do Prob. 10.8-1. The Tinker Construction Company is ready to begin a project that must be completed in 12 months. This project has four activities (A, B, C, D) with the project network shown next....
Why are most engineers likely to have experience with deterministic risk and not probabilistic risk?
A wire of diameter D = 2 mm and uniform temperature T has an electrical resistance of 0.01 n/m and a current flow of 20 A. (a) What is the rate at which heat is dissipated per unit length of wire?...
Question 4 (8 Marks): For this question, your first task is to study the famous "Distance Vector (DV) Routing Algorithm" used at the network layer. You may refer to some slides I recently posted on...
You are a manager of a Wally's Training Gym and you encourage your trainers to enroll new members. Input is the trainer's last name and the number of new enrollees. Output is the number of trainers...
Consider the hypergeometric distribution with parameters r, n, and N. Suppose r depends on N in such as way that r/N p as N , where 0 < p < 1. Show that the mean and variance of the hypergeometric...
The Lady Tasting Tea is one of the most famous experiments in the founding history of statistics. In his 1935 book The Design of Experiments (1935), Sir Ronald A. Fisher writes, A Lady declares that...
Use a computer algebra system to find the rate of mass flow of a fluid of density through the surface S oriented upward when the velocity field is given by F(x, y, z) = 0.5zk. S: z = 16 - x - y, z 0
Asian financial crisis and the Thai baht. On July 3, 1997, the Thai baht was unpegged from the U.S. dollar and promptly depreciated from THB 25 = US$1 to THB 60 = US$1. What was the bahts percentage...
Salgacoar Shippings CEO expressed reservations about the equity financing recommendation that the firms CFO was finalizing for presentation to the board (see problems 6 and 7). He generally agreed...
The CFA franc and the birth of the euro. In 1999, the launch of the euro buried the French franc to which the CFA franc was pegged: the CFA franc would now be convertible into euros () rather than...
Hong Kong currency board and the Chinese yuan. For the past 25 years Hong Kong has relied on a currency board to peg its currency against the U.S. dollar at HK$7.80 = US$1. Since 2005, the Chinese...
If the dollar price of one Russian ruble (RUB) is US$0.03282 = RUB 1 in New York City and at the same time the Russian ruble price of one dollar is 30. 469 in Moscow, show how arbitrageurs could take...
1. How does seasonal demand affect the firms capacity planning and constraint management? 2. Identify the most critical issues in the case, and develop a strategic capacity plan for Kirwain. 3. What...
Which of the ocean zones shown would be home to each of the following organisms: lobster, coral, mussel, porpoise, and dragonfish? For those organisms you identify as living in the pelagic...
What is the probability that at least 7 of the 10 hypertensives know they have high blood pressure? Hypertension A national study found that treating people appropriately for high blood pressure...
If the preceding 50% rates were each reduced to 40% by a massive education program, then what effect would this change have on the overall mortality rate among true hypertensives; that is, would the...
If a sample size of 5 is selected from this population, what is the probability that 1 or more women are positive for bacteriuria? Renal Disease The presence of bacteria in a urine sample...
Show how binary exponentiation can be used to calculate a 128 efficiently. How many multiplications are required?
How can one tell many months the positive skew had in it?
Drug 4 mg I every 3 hours prn pain. Supplied as 10mg/10 ml. Calculate mL per dose?

In a town of 20,000, there are 12,000 voters, of whom 6000 are registered democrats and 5000

Question:

Step by Step Answer:

a Let X be the number of Democrats in the sample Then X has a hypergeometric distribution ...View the full answer

Probability With Applications and R

Students also viewed these Mathematics questions