Suppose X is binomial. If p = .9, how big does n have to be in order to use the normal approximation to answer a probability question?

Q: A negative z-value implies a negative probability

A: Z~N(μ=0, σ2=1)

Q: The probability that a person living in a certain city owns a dog is estimated to be 0.2. Find the…

A:

Q: The probability that a person living in a city owns a pet is estimated to be 0.2. Find the…

A: Independent Events: Let A1, A2, ... , An be n independent events with P(Ai) > 0 for all i = 1, 2,…

Q: Suppose that X is a binomial random variable with n= 12 and p = 0.28. Find P 3 ). Write only a…

A:

Q: The probability that Mr. Johnson goes for an evening walk on any given day during the winter is…

A: Formula : E(X) = np'

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.