Mathematics, 02.04.2020 04:00 savannabroyhill24
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 minutes with a standard deviation of 4.6. The school predicts that the new naptime routine will reduce crying time. Test whether this new naptime routine reduced crying time at a .05 level of significance.
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The mean crying time of infants during naptime at a local preschool is 12 minutes. The school implem...
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