Question

President Election Polls Half of the population supports the president (i.e., p=0.5). For a random sample...

President Election Polls Half of the population supports the president (i.e., p=0.5). For a random sample of size 1000, what is the probability of having ≥600 in support of the president?

1. Use binomial distribution

2. Use normal distribution as approximation.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Dear student,
I am waiting for your feedback. I have given my 100% to solve your queries. If you satisfied with my answer then please please like this.
Thank You

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
11. Random samples of size n = 80 were selected from a binomial population with p...
11. Random samples of size n = 80 were selected from a binomial population with p = 0.2. Use the normal distribution to approximate the following probability. (Round your answer to four decimal places.) P(p̂ ≤ 0.26) 12. Random samples of size n = 80 were selected from a binomial population with p = 0.8. Use the normal distribution to approximate the following probability. (Round your answer to four decimal places.) P(p̂ > 0.79)
Given that 1% of the population are left handed, if a random sample of 1000 people...
Given that 1% of the population are left handed, if a random sample of 1000 people is selected where x denotes the number of left handed people, a) The random variable X is (choose one) i) Binomial ii) hypergeometric iii) Poisson iv) Normal v) Exponential vi) Uniform b) Give the expectation value and variance of X. c) Find the probabilities P(X=6) and P(X≥6). d) Which distribution from those listed in part (a) can be used as an approximation to the...
Suppose your friend Joanna is running for class president. The proportion of individuals in a population...
Suppose your friend Joanna is running for class president. The proportion of individuals in a population of students who will vote for Joanna on election day is 60%. You plan to conduct a poll of size n and report X, the number of individuals in your poll who plan to vote for Joanna. You also plan to compute ?̂=??, the proportion of individuals in your poll who plan to vote for Joanna. a) Explain why X is a binomial random...
Random samples of size n = 80 were selected from a binomial population with p =...
Random samples of size n = 80 were selected from a binomial population with p = 0.3. Use the normal distribution to approximate the following probability. (Round your answer to four decimal places.) P(p̂ > 0.28) =
Random samples of size n = 85 were selected from a binomial population with p =...
Random samples of size n = 85 were selected from a binomial population with p = 0.8. Use the normal distribution to approximate the following probability. (Round your answer to four decimal places.) P(p̂ < 0.70) =
Random samples of size n = 90 were selected from a binomial population with p =...
Random samples of size n = 90 were selected from a binomial population with p = 0.3. Use the normal distribution to approximate the following probability. (Round your answer to four decimal places.) P(0.26 ≤ p̂ ≤ 0.34) =
Use the normal approximation to find the indicated probability. The sample size is n, the population...
Use the normal approximation to find the indicated probability. The sample size is n, the population proportion of successes is p, and X is the number of successes in the sample. n = 81, p = 0.5: P(X ≥ 46)
Suppose 1% of people doesn’t have immunity against a new virus. Let P be the probability...
Suppose 1% of people doesn’t have immunity against a new virus. Let P be the probability that there are 2, 3 or 4 people without immunity in a random sample of 100 people. Use binomial distribution to find P . Use normal approximation to the binomial distribution to find P . Use Poisson distribution to find P .
If I take binomial distribution, like P % a population are graduates. Given a sample of...
If I take binomial distribution, like P % a population are graduates. Given a sample of Size n, i get p% of as graduates . Can we have a special case equations to find, for give n, probability of P-p < Threshold ? Lets Say n=600 , and P-p <= 1 % ie 6 .
Q4. A simple random sample of size n=180 is obtained from a population whose size=20,000 and...
Q4. A simple random sample of size n=180 is obtained from a population whose size=20,000 and whose population proportion with a specified characteristic is p=0.45. Determine whether the sampling distribution has an approximately normal distribution. Show your work that supports your conclusions. Q5. Using the values in Q4, calculate the probability of obtaining x=72 or more individuals with a specified characteristic.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT