Within a Range of Z Scores from -1 to +1

question 50

Multiple Choice

Within a range of z scores from -1 to +1, you can expect to find _______ per cent of the values in a normal distribution.

• A)95
• B)99
• C)68
• D)34
• E)100

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Definitions:

Alpha

Typically refers to the level of significance in statistical hypothesis testing, representing the likelihood of rejecting a true null hypothesis.

T-statistic

A type of statistic used in hypothesis testing, calculated to determine the significance of certain variables or differences between means.

Level of Significance

A threshold of probability set before a study to determine when an observed effect is considered statistically significant, typically denoted by alpha.

Alpha

In statistics, the significance level defined as the probability of rejecting the null hypothesis when it is true.