Given Independent Random Variables with Means and Standard Deviations as Shown,find

question 32

Multiple Choice

Given independent random variables with means and standard deviations as shown,find the mean and standard deviation of the variable Y - 19.Round to two decimal places if necessary.

• A)μ = 201,σ = 35.51
• B)μ = 201,σ = 11
• C)μ = 201,σ = 23.22
• D)μ = 220,σ = 30
• E)μ = 201,σ = 30

---

Definitions:

Confidence Interval

A range of values, derived from sample data, that is likely to contain the value of an unknown population parameter, with a certain degree of confidence.

Standard Deviation

An indicator of the degree of spread or scatter of a collection of numbers, showing the extent to which these numbers differ from their average value.

Error of Estimation

The error of estimation, often referred to as the margin of error, quantifies the uncertainty associated with estimating population parameters based on sample statistics.

Sample Size

The number of observations or data points collected in a study or experiment.