Let X Be a Binomial Random Variable with N = $\geq$

question 94

Short Answer

Let X be a binomial random variable with n = 25 and p = 0.6. Approximate the following probabilities, using the normal distribution.
a. P(X $\geq$ 20).
b. P(X $\leq$ 15).
c. P(X = 10).

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Definitions:

Sampling Error

The error that arises from estimating a population parameter based on a sample rather than the entire population.

Sample Statistic

A numerical measure calculated from a sample of data, used to estimate a population parameter.

Population Parameter

A numerical value that represents a characteristic of a population.

One-tailed Test

A statistical test that determines the direction of a relationship, testing either for a positive or negative effect but not both.