# Type I and type II errors occur because of what issue within the hypothesis testing process? />The population is not a representative subset of the sampleThe sample taken is not representative of the populationThe sample mean is different than the population meanThe math calculations were done incorrectly

A researcher wants to determine if extra homework problems help 8thgrade students learn algebra. An 8th grade class is divided into pairs and one student from each pair has extra homework problems and the other in the pair does not. After 2 weeks, the entire class takes an algebra test and the results of the two groups are compared. To be a valid matched pair test, what should the researcher consider in creating the two groups?

That the group with the extra homework problems has fewer after school activitiesThat the group without extra homework problems receives different instructionThat each pair of students has similar IQs or abilities in mathematicsThat each pair of students has similar ages at the time of the testing

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