Mathematics, 26.03.2020 02:53, caz27

The mean crying time of infants during naptime at a local preschool is 12 minutes. The school implements a new naptime routine in a sample of 25 infants and records an average crying time of 8 Â± 4.6 (M Â± SD) minutes. Test whether this new naptime routine reduced crying time at a 0.05 level of significance.

A) The new naptime routine significantly reduced crying time, t(24) = ?4.35, p <0.05.

B) The new naptime routine did not reduce crying time, t(24) = ?4.35, p < 0.05.

C) The new naptime routine did not reduce crying time, t(24) = 0.92, p > 0.05.

D) The new naptime routine significantly reduce crying time, t(24) = 0.92, p < 0.05.

Answers: 2

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The mean crying time of infants during naptime at a local preschool is 12 minutes. The school implem...