Ý - 1) in a sample. hypothesis that the voters are evenly c t is the probability that, in a random sa lysis of Part A, but now assume that t n of the Netherlands is approximately

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
Question
2. Candidates A and B are running for president in 2024. Let Y = 1 denote a voter who prefers A, and
let Y = 0 denote a voter who prefers B. Modelling this as a Bernouilli, trial, we define Y as a random variable
with success probability Prob (Y=1) = p, where Y = 1 if a voter prefers A and Y = 0 otherwise. Let p be the
fraction of successes (Y = 1) in a sample.
А.
Under the null hypothesis that the voters are evenly divided (so that candidate A would receive 50% of
the votes, what is the probability that, in a random sample of 40, candidate A would receive 40% of the
vote or less?
Repeat the analysis of Part A, but now assume that the random sample has n= 100.
The population of the Netherlands is approximately 20 million, whereas the population of the USA is
about 330 million -- more than 16 times larger than the population of the Netherlands. For the same null
hypothesis (p = 0.50) in each country, do pollsters in the USA need to select random samples that are
more than 16 times larger than random samples in the Netherlands? Why, or why not? Explain your
В.
С.
answer.
Transcribed Image Text:2. Candidates A and B are running for president in 2024. Let Y = 1 denote a voter who prefers A, and let Y = 0 denote a voter who prefers B. Modelling this as a Bernouilli, trial, we define Y as a random variable with success probability Prob (Y=1) = p, where Y = 1 if a voter prefers A and Y = 0 otherwise. Let p be the fraction of successes (Y = 1) in a sample. А. Under the null hypothesis that the voters are evenly divided (so that candidate A would receive 50% of the votes, what is the probability that, in a random sample of 40, candidate A would receive 40% of the vote or less? Repeat the analysis of Part A, but now assume that the random sample has n= 100. The population of the Netherlands is approximately 20 million, whereas the population of the USA is about 330 million -- more than 16 times larger than the population of the Netherlands. For the same null hypothesis (p = 0.50) in each country, do pollsters in the USA need to select random samples that are more than 16 times larger than random samples in the Netherlands? Why, or why not? Explain your В. С. answer.
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON