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It Was Late on a Friday Afternoon When Troy Willicott

question 91

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It was late on a Friday afternoon when Troy Willicott got a call at the help desk for Taggitt Finances.A man with an edge of panic clearly discernible in his voice was on the phone."I'm really in a bind and I sure hope that you can help me." He identified himself as Chet Frazier from the Accounting Department.He told Troy that he had to work on a report that was due on Monday morning and that he had forgotten to bring a written copy of his new password home with him.Troy know that Taggitt's new password policy,that required that passwords must be at least fifteen characters long,must contain letters and numbers,and must be changed every sixty days,had created problems.Consequently,Troy provided the password,listened as it was read back to him,and was profusely thanked before ending the call.The caller was not Chet Frazier,and Troy Willicott was a victim of

Definitions:

Chi-square Test

A statistical approach intended to determine the existence of an important association between two variables that are categorical.

Null Hypothesis

A hypothesis used in statistics that suggests no significant difference or effect, serving as a default position before any evidence is considered.

Chi-square Test

A statistical test used to determine the association between categorical variables, assessing whether observed frequencies differ significantly from expected frequencies.

Null Hypothesis

A null hypothesis is a type of hypothesis used in statistics that proposes no significant difference or effect, serving as the default assumption until evidence suggests otherwise.