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Explain the general rationale behind using a z-score for describing how an individual performed on an e x a m compared to just stating the overall mean and the individual’s score.

by | Apr 5, 2022 | Statistics homework help

Explain the general rationale behind using a z-score for describing how an individual performed on an e x a m compared to just stating the overall mean and the individual’s score. How does the information differ in the two situations? What additional information...

How many answer options  would you need on each item to ensure that the probability of a student  randomly guessing earning a passing mark is less than 1 percent?

by | Apr 5, 2022 | Statistics homework help

Consider a 10 question multiple choice test. How many answer options  would you need on each item to ensure that the probability of a student  randomly guessing earning a passing mark is less than 1 percent? How  does the required number of answer options change if...

What situation in criminal justice research/practice would require a hypothesis test to examine if there is a significant difference between means (i.e. continuous data)?

by | Apr 3, 2022 | Statistics homework help

What situation in criminal justice research/practice would require a hypothesis test to examine if there is a significant difference between means (i.e. continuous data)? What variable(s) could this type of test be important for? Explain its importance in the criminal...