# Question

According to a poll, 55% of Americans do not know that GOP stands for Grand Old Party (Time,

October 17, 2011). Assume that this percentage is true for the current population of Americans. Let p̂ be the proportion in a random sample of 900 Americans who do not know that GOP stands for Grand Old Party. Find the mean and standard deviation of the sampling distribution of p̂ and describe its shape.

October 17, 2011). Assume that this percentage is true for the current population of Americans. Let p̂ be the proportion in a random sample of 900 Americans who do not know that GOP stands for Grand Old Party. Find the mean and standard deviation of the sampling distribution of p̂ and describe its shape.

## Answer to relevant Questions

In a Time/Money Magazine poll of Americans age 18 years and older, 65% agreed with the statement, “We are less sure our children will achieve the American Dream” (Time, October 10, 2011). Assume that this result is true ...For a population, N = 18,000 and p = .25. Find the z value for each of the following for n = 70. a. p̂ = .26 b. p̂ = .32 c. p̂ = .17 d. p̂ = .20 Mong Corporation makes auto batteries. The company claims that 80% of its LL70 batteries are good for 70 months or longer. Assume that this claim is true. Let p̂ be the proportion in a sample of 100 such batteries that are ...Multiple choice questions: 1. A sampling distribution is the probability distribution of a. A population parameter b. A sample statistic c. Any random variable 2. Non-sampling errors are a. The errors that occur because the ...York Steel Corporation produces iron rings that are supplied to other companies. These rings are supposed to have a diameter of 24 inches. The machine that makes these rings does not produce each ring with a diameter of ...Post your question

0