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# Confidence and Sample Hypothesis Testing MCQ

### Z- distribution is otherwise known as the normal distribution, this distribution helps find probabilities and percentiles of small , discontinuous , randomly selected data.

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### In hypothesis testing, this refers to when the critical area to reject the null can be in the right or left tail of the distribution is known as Two-tailed test.

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### T-distribution is a probability distribution used to estimate population parameters when the sample size is large and/or the population variance is unknown.

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### The part of distribution that is furthest from the mean is known as ?

Correct Answer: Tails of a distribution

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### Short for probability of error value is known as ?

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### The singular value in a probability sample that is obtained to approximate the population parameter

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### _________ is in hypothesis testing, this refers to when the critical area to reject the null is either in the right or left tail of the distribution, but not both.

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### __________ statistical tests that relate observed sample data to unobserved population characteristics.

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