THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 32

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
= 19.56 s_d = 2.5 and n = 20
-Calculate the margin of error for a 95% confidence interval using the given data:

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Definitions:

Degrees Of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution minus the number of parameters estimated.

Significance Level

The probability of rejecting the null hypothesis in a statistical test when it is true, commonly set at 0.05 or 5%.

Chi-Square Value

A statistic that measures the difference between observed and expected frequencies to test for independence in categorical variables.

Null Hypothesis

A hypothesis used in statistical testing that assumes no significant difference or effect exists between certain states or variables.